Medicare Enrolled
Dr. Christopher Ng, M.D.
Optician · Los Angeles, CA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Consulting-driven
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Ng from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
Are you Dr. Ng?
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What this data tells you about Dr. Ng
Dr. Christopher Ng is an optician specialist in Los Angeles, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Ng performed 31,005 Medicare services across 13,182 unique beneficiaries.
Between the years covered by Open Payments, Dr. Ng received a total of $17,566 from 41 pharmaceutical and/or device companies across 248 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in optician. The majority of payments are for consulting, which typically reflects recognized clinical expertise sought by manufacturers. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Ng is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 20 years in practice
▲ Top 3% volume in CA
$17,566 industry payments
Medicare Practice Summary
Medicare Utilization ↗31,005
Medicare services
Top 3% in CA for optician
13,182
Unique beneficiaries
$29
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~1,550 Medicare services per year of practice
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| BCG treatment for bladder cancer | 3,801 | $2 | $10 |
| Infectious disease DNA/RNA test A laboratory test that uses a specific technique to detect the genetic material of an organism. This method amplifies the target DNA or RNA to identify the presence of the organism. |
2,886 | $34 | $100 |
| Contrast dye for imaging (iodine-based) A contrast agent containing 300-399 mg/ml of iodine used to enhance imaging studies. It is administered per milliliter to improve the visibility of internal structures. |
2,800 | $0 | $3 |
| Creatinine test (kidney function) A blood test that measures the amount of creatinine to assess kidney function or detect muscle injury. |
2,092 | $5 | $30 |
| Manual urinalysis with microscopic examination A urine test performed manually without automated equipment. The sample is examined under a microscope to check for abnormalities. |
2,091 | $4 | $35 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
1,676 | $71 | $292 |
| Complete pelvic ultrasound An imaging test using sound waves to create pictures of the organs and structures within the pelvis. |
1,083 | $90 | $425 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
881 | $8 | $20 |
| PSA test (prostate cancer screening) | 867 | $18 | $70 |
| Total testosterone level test A blood test that measures the total amount of testosterone in your body. This hormone is important for various bodily functions in both men and women. |
851 | $25 | $95 |
| Limited ultrasound of pelvis A focused ultrasound exam of the pelvic area to evaluate specific structures. This procedure provides images of the pelvis to assist in medical assessment. |
850 | $42 | $425 |
| Electronic assessment of bladder emptying A test that uses electronic monitoring to evaluate how well the bladder empties urine. |
755 | $12 | $200 |
| Urine culture, bacterial colony count A laboratory test that measures the number of bacteria growing in a urine sample to help identify infections. |
712 | $8 | $30 |
| Bacterial culture, aerobic A laboratory test that grows and identifies bacteria capable of surviving in oxygen. The results help determine the presence of specific aerobic microorganisms. |
700 | $8 | $35 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
492 | $99 | $400 |
| Kidney function blood test panel | 458 | $9 | $50 |
| Limited retroperitoneal ultrasound A focused ultrasound exam of the area behind the abdominal cavity to evaluate specific structures. |
449 | $48 | $301 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
437 | $8 | $25 |
| Uric acid level test A blood test that measures the level of uric acid in your body. Uric acid is a waste product formed when the body breaks down purines. |
428 | $4 | $25 |
| Liver function blood test panel | 417 | $8 | $30 |
| Antimicrobial drug evaluation Assessment of the patient's response to antibiotic, antifungal, or antiviral therapy. |
412 | $7 | $24 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
409 | $29 | $100 |
| Complete ultrasound of retroperitoneum An ultrasound examination of the structures located behind the abdominal cavity. |
358 | $86 | $425 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
349 | $12 | $48 |
| Free PSA test A blood test that measures the amount of unbound prostate-specific antigen in the blood. |
224 | $18 | $90 |
| Yeast/candida DNA test A laboratory test that uses an amplified probe technique to detect the presence of Candida species, a type of yeast, in a patient sample. |
222 | $34 | $100 |
| Chlamydia trachomatis nucleic acid amplification test A laboratory test that uses nucleic acid amplification to detect the presence of Chlamydia trachomatis bacteria in a sample. |
222 | $34 | $100 |
| Gonorrhea nucleic acid amplification test A laboratory test that uses amplified probe techniques to detect the genetic material of gonorrhea bacteria. This method identifies the presence of the infection by analyzing nucleic acids from the sample. |
222 | $34 | $100 |
| Staphylococcus aureus DNA test A laboratory test that uses DNA amplification to detect the presence of Staphylococcus aureus bacteria in a sample. |
222 | $34 | $100 |
| Group B Strep DNA test A laboratory test that uses DNA amplification to detect the presence of Group B Streptococcus bacteria. |
222 | $34 | $100 |
| Trichomonas vaginalis nucleic acid test A laboratory test that uses an amplified probe technique to detect the genetic material of the Trichomonas vaginalis parasite. This method identifies the presence of the organism responsible for trichomoniasis. |
222 | $34 | $100 |
| Lower leg neurostimulator electrode insertion A procedure to place an electrode in the lower leg for neurostimulation therapy. |
221 | $105 | $500 |
| Mycoplasma genitalium DNA/RNA test A laboratory test that uses DNA or RNA probes to detect the presence of Mycoplasma genitalium bacteria in a sample. |
221 | $34 | $100 |
| Electronic analysis of implanted neurostimulator This procedure involves electronically analyzing an implanted neurostimulator generator and performing simple programming for spinal cord or peripheral nerve stimulation. |
221 | $40 | $200 |
| Hospital follow-up visit, low complexity Follow-up hospital visit for an established patient with straightforward or low-level medical decision making. The visit requires at least 25 minutes of time spent on the day of service. |
215 | $41 | $182 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
183 | $115 | $500 |
| Injection, tobramycin sulfate, up to 80 mg | 181 | $2 | $30 |
| Immunologic organism identification test A laboratory test that uses immunologic methods to identify specific organisms in a sample, excluding immunofluorescence techniques. |
180 | $5 | $15 |
| Leuprolide acetate (for depot suspension), 7.5 mg | 168 | $136 | $625 |
| Urethral dilation using endoscope A procedure to widen the urethra using a thin, lighted tube called an endoscope. This helps to open a narrowed urethral passage. |
155 | $291 | $1,200 |
| Office visit for established patient An office visit for an existing patient that may not require the healthcare professional to be present. |
147 | $19 | $100 |
| Ceftriaxone antibiotic injection This code represents the administration of ceftriaxone sodium, an antibiotic medication. The charge is calculated for every 250 mg of the drug administered. |
104 | $0 | $12 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
93 | $142 | $529 |
| Bladder instillation of anti-cancer drug A procedure where an anti-cancer medication is introduced directly into the bladder. This method delivers the treatment locally to the bladder tissue. |
90 | $76 | $499 |
| Imaging of urinary tract with contrast An imaging test of the urinary tract performed after a contrast agent is injected to enhance visibility of the structures. |
80 | $20 | $275 |
| VRE nucleic acid detection test A laboratory test that uses amplified probe techniques to detect vancomycin-resistant Enterococcus (VRE) DNA in a patient sample. |
79 | $34 | $100 |
| MRSA nucleic acid detection test A laboratory test that uses amplified probe techniques to detect the genetic material of methicillin-resistant Staphylococcus aureus (MRSA) bacteria. |
79 | $34 | $100 |
| Wet mounts, including preparations of vaginal, cervical or skin specimens | 64 | $17 | $35 |
| Complicated insertion of bladder tube | 61 | $128 | $274 |
| Subcutaneous or intramuscular chemotherapy injection This procedure involves administering anti-cancer hormonal medication through an injection into the tissue under the skin or into a muscle. |
60 | $31 | $150 |
| Complex urodynamic pressure flow study A test that measures the pressure of urine flow in the bladder during voiding to evaluate how well the bladder and urethra are functioning. |
56 | $332 | $700 |
| Bladder irrigation and/or instillation This procedure involves flushing the bladder with fluid to clear it or introducing medication directly into the bladder. |
53 | $66 | $225 |
| Transrectal ultrasound of the pelvis An ultrasound imaging procedure where a probe is inserted into the rectum to visualize pelvic structures. |
46 | $125 | $300 |
| Office visit, established patient (10-19 min) An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition. |
44 | $49 | $200 |
| Ureteral stent insertion via endoscope A flexible tube is inserted into the ureter using an endoscope to keep the passage open and allow urine to flow from the kidney to the bladder. |
33 | $119 | $1,491 |
| Ureteral stone crushing with stent insertion An endoscope is used to break up a stone in the ureter, followed by the placement of a stent to keep the ureter open. |
31 | $368 | $6,145 |
| CT scan of abdomen and pelvis with contrast A CT scan of the abdomen and pelvis using contrast dye before and after administration to visualize internal structures. |
28 | $245 | $1,489 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
28 | $10 | $50 |
| Sex hormone binding globulin level test A blood test that measures the level of sex hormone binding globulin, a protein that binds to sex hormones in the bloodstream. |
21 | $21 | $95 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
21 | $154 | $467 |
| Endoscopic destruction of bladder/urethra growth, less than 0.5 cm A procedure to remove abnormal tissue growths from the bladder or urethra using an endoscope. This specific code applies when the growths are smaller than 0.5 centimeters. |
19 | $138 | $1,000 |
| Endoscopic removal of foreign body, stone, or stent from urethra or bladder A procedure to remove a foreign object, stone, or stent from the urethra or bladder using an endoscope. The endoscope is a thin tube with a camera inserted into the urinary tract to locate and extract the item. |
19 | $280 | $947 |
| Laser vaporization of prostate A procedure that uses a laser to remove excess prostate tissue through an endoscope. The process includes controlling any bleeding that occurs during the treatment. |
19 | $554 | $5,000 |
| Injection to cause erection A procedure involving an injection administered to induce an erection. |
19 | $73 | $300 |
| Total estradiol level test A blood test that measures the total amount of estradiol, a form of estrogen, in the body. |
19 | $27 | $90 |
| CT scan of abdomen and pelvis, without contrast A computed tomography scan that creates detailed images of the abdominal and pelvic organs. The procedure is performed without the use of intravenous contrast dye. |
18 | $94 | $1,200 |
| Ultrasound guidance for needle placement Use of ultrasound imaging to guide the precise placement of a needle during a medical procedure. |
18 | $52 | $425 |
| Prostate incision A surgical procedure involving an incision into the prostate gland. |
16 | $201 | $3,000 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
16 | $16 | $50 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
15 | $9 | $50 |
| Sedation by physician, initial 15 minutes Administration of a drug to induce depression of consciousness by the physician performing a procedure. This code covers the initial 15 minutes of sedation for patients aged 5 years or older. |
15 | $45 | $250 |
| Prostate gland biopsy A procedure to remove small samples of tissue from the prostate gland for laboratory examination. |
14 | $210 | $1,000 |
| Ultrasound of penis artery and vein blood flow An ultrasound exam that uses sound waves to visualize and assess blood flow through the arteries and veins of the penis. |
13 | $104 | $454 |
| Prostate needle biopsy pathology exam Laboratory examination of prostate tissue samples obtained via needle biopsy. The pathologist inspects the tissue both visually and under a microscope to identify any abnormalities. |
12 | $165 | $2,500 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
0.3% high complexity
20.9% medium
78.8% routine
Industry Payment Transparency
Open Payments through 2024 ↗$17,566
Total received (2018-2024)
Avg $2,509/year across 7 years
Top 9% in CA for optician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
41
Companies
248
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$11,416 (65.0%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$6,149 (35.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$791
2023
$1,494
2022
$12,042
2021
$1,051
2020
$189
2019
$855
2018
$1,144
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Dendreon Pharmaceuticals LLC
$179
Ferring Pharmaceuticals Inc.
$106
ABBVIE INC.
$104
PFIZER INC.
$95
Blue Earth Diagnostics Limited
$64
Merck Sharp & Dohme LLC
$43
PROCEPT BioRobotics Corporation
$41
Myriad Genetic Laboratories, Inc.
$32
UROGEN PHARMA, INC.
$25
PROGENICS PHARMACEUTICALS, INC.
$23
Bayer Healthcare Pharmaceuticals Inc.
$22
Sumitomo Pharma America, Inc.
$21
IMMUNITYBIO, INC.
$20
Telix Pharmaceuticals
$18
Top 3 companies account for 49.0% of 2024 payments
All-time payments by company (2018-2024) ›
Ethicon Inc.
$11,416
Astellas Pharma US Inc
$936
ABBVIE INC.
$548
Dendreon Pharmaceuticals LLC
$495
Janssen Biotech, Inc.
$459
UroGen Pharma, Inc.
$331
Myovant Sciences Inc.
$328
PFIZER INC.
$326
Blue Earth Diagnostics Limited
$302
Teleflex LLC
$243
AbbVie, Inc.
$170
Rochester Medical Corporation
$165
Amgen Inc.
$150
Ferring Pharmaceuticals Inc.
$148
COLOPLAST CORP
$136
DePuy Synthes Sales Inc.
$120
Sumitomo Pharma America, Inc.
$113
Augmenix, Inc.
$112
Myriad Genetic Laboratories, Inc.
$112
PROCEPT BioRobotics Corporation
$104
MEDIVATION FIELD SOLUTIONS LLC
$101
Profound Medical Corp.
$88
Merck Sharp & Dohme LLC
$88
C. R. Bard, Inc. & Subsidiaries
$76
Boston Scientific Corporation
$72
Bayer Healthcare Pharmaceuticals Inc.
$70
Bayer HealthCare Pharmaceuticals Inc.
$40
E.R. Squibb & Sons, L.L.C.
$37
Averitas Pharma Inc.
$30
Ethicon US, LLC
$26
UROGEN PHARMA, INC.
$25
AbbVie Inc.
$24
PROGENICS PHARMACEUTICALS, INC.
$23
Axonics, Inc.
$22
UROVANT SCIENCES INC
$20
IMMUNITYBIO, INC.
$20
AstraZeneca Pharmaceuticals LP
$19
Progenics Pharmaceuticals, Inc.
$19
Antares Pharma, Inc.
$18
Telix Pharmaceuticals
$18
BOSTON SCIENTIFIC CORPORATION
$14
Top 3 companies account for 73.4% of all-time payments
Associated products mentioned in payments ›
ADSTILADRIN · AMS · ANKTIVA · AQUABEAM SYSTEM · AquaBeam Robotic System · Axumin · BOTOX · BRAC CDx · BRACAnalysis CDx · Bard Urinary Drainage Bag · Bulkamid · CREON · ERLEADA · Erleada · FIRMAGON · GEMTESA · GENERAL BPH · GREENLIGHT · ILLUCCIX · JELMYTO · KEYTRUDA · LUPRON DEPOT · LYNPARZA · Lupron · Lupron Depot · MONOVISC · MYRBETRIQ · Monarch Platform · Myrbetriq · NOCDURNA · Nubeqa · OPDIVO · ORGOVYX · POSLUMA · PROLARIS · PROVENGE · PYLARIFY · Prolia · QUTENZA · STRATAFIX · SpaceOAR · SpeediCath · Titan · Tulsa-Pro · UROLIFT · UroLift System · VESICARE · XGEVA · XTANDI · Xtandi
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
The majority of payments (65%) are consulting fees, which typically reflect recognized clinical expertise sought by manufacturers. Total industry engagement is in the top 9% for optician in CA.
Geographic Context
Opticians within 10 mi
1,540
Per 100K population
15.6
County median income
$87,760
Nearest hospital
CEDARS-SINAI MEDICAL CENTER
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Ng is a mixed practice specialist, with above-average Medicare volume (top 3% in CA), with consulting-driven industry engagement in the top 9% of CA peers, with 20 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Ng experienced with bcg treatment for bladder cancer?
Based on Medicare claims data, Dr. Ng performed 3,801 bcg treatment for bladder cancer services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Ng receive payments from pharmaceutical companies?
Yes. Dr. Ng received a total of $17,566 from 41 companies across 248 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Ng's costs compare to other opticians in Los Angeles?
Dr. Ng's average Medicare payment per service is $29. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Ng) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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