Medicare Enrolled
Dr. Lulu Zhang, M.D.
Internal Medicine · Monterey, CA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
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. Zhang 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 →
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What this data tells you about Dr. Zhang
Dr. Lulu Zhang is an internal medicine specialist in Monterey, CA, with 14 years of NPI registration. Based on federal Medicare data, Dr. Zhang performed 198,281 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Zhang received a total of $3,862 from 25 pharmaceutical and/or device companies across 34 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Zhang 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.
✓ 14 years of NPI registration
▲ Top 0% volume in CA
$3,862 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗198,281
Medicare services
Top 0% in CA for internal medicine
Not available
Unique patients (not deduplicated)
$6
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
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 |
|---|---|---|---|
| Iron infusion (Injectafer) An intravenous injection of ferric carboxymaltose, an iron replacement medication. |
31,500 | $1 | $3 |
| Filgrastim-ayow biosimilar injection, 1 microgram An injection of the biosimilar medication filgrastim-ayow (Releuko) at a dose of 1 microgram. |
27,480 | $0 | $2 |
| Filgrastim injection (Zarxio) for white blood cells An injection of the biosimilar medication filgrastim-sndz (Zarxio) with a dosage of 1 microgram. |
25,620 | $0 | $1 |
| Darbepoetin injection (Aranesp) for anemia An injection of darbepoetin alfa used for non-end-stage renal disease purposes. |
24,400 | $2 | $8 |
| Iron infusion (Feraheme) An injection of ferumoxytol used to treat iron deficiency anemia in patients not on dialysis. |
16,830 | $0 | $2 |
| Denosumab injection (Prolia/Xgeva) | 16,620 | $18 | $59 |
| Oxaliplatin chemotherapy injection This procedure involves the administration of oxaliplatin, a chemotherapy medication, via injection. The dosage specified is 0.5 mg. |
9,200 | $0 | $1 |
| Paclitaxel chemotherapy injection | 7,726 | $0 | $1 |
| Epoetin alfa injection (Retacrit) for anemia An injection of a biosimilar form of epoetin alfa used for non-end-stage renal disease purposes. The dose administered is 1000 units. |
7,680 | $6 | $22 |
| Anti-nausea injection (fosaprepitant) An injection of fosaprepitant, a medication used to prevent nausea and vomiting. |
6,300 | $0 | $1 |
| Pembrolizumab injection (Keytruda) | 4,800 | $43 | $139 |
| Injection, docetaxel, 1 mg | 3,427 | $1 | $2 |
| Eflapegrastim injection, 0.1 mg An injection of eflapegrastim-xnst administered at a dose of 0.1 mg. |
3,036 | $25 | $80 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
2,320 | $0 | $1 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
1,554 | $8 | $33 |
| 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. |
1,471 | $8 | $33 |
| 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. |
1,341 | $104 | $347 |
| Anti-nausea injection (Aloxi/palonosetron) | 1,170 | $1 | $4 |
| 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. |
721 | $12 | $39 |
| Additional sequential IV infusion, 1 hour or less This code represents an additional intravenous infusion administered sequentially to a primary infusion. It covers the administration time of one hour or less. |
442 | $25 | $82 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
393 | $115 | $376 |
| 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. |
387 | $147 | $484 |
| Injection, gemcitabine hydrochloride, not otherwise specified, 200 mg | 386 | $3 | $9 |
| Pegfilgrastim-jmdb injection An injection of pegfilgrastim-jmdb, a biosimilar medication. The dose specified is 0.5 mg. |
372 | $103 | $337 |
| 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. |
355 | $73 | $246 |
| Leuprolide acetate (for depot suspension), 7.5 mg | 333 | $134 | $434 |
| Carboplatin chemotherapy injection, 50 mg Administration of a 50 mg dose of carboplatin, a chemotherapy medication, via injection. |
314 | $2 | $7 |
| Intravenous infusion of new drug or substance, 1 hour or less This procedure involves administering a new medication or substance directly into a vein through an existing access site. The infusion is completed within one hour or less. |
165 | $57 | $184 |
| 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. |
148 | $30 | $100 |
| Additional hour of intravenous chemotherapy This code represents the administration of chemotherapy medication into a vein for each additional hour beyond the initial period. |
144 | $25 | $80 |
| Intravenous infusion, 1 hour or less Administration of medication or fluid directly into a vein for therapeutic, preventive, or diagnostic purposes. The procedure lasts one hour or less. |
138 | $55 | $184 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
131 | $14 | $44 |
| New patient office visit, complex (60-74 min) | 131 | $174 | $591 |
| Diphenhydramine injection, up to 50 mg An injection of diphenhydramine hydrochloride, an antihistamine medication, administered in a dose of up to 50 milligrams. |
120 | $1 | $3 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
104 | $10 | $26 |
| Unclassified drug A medication that does not fit into standard HCPCS or CPT classification categories. |
100 | $0 | $33 |
| Zoledronic acid injection, 1 mg An injection of zoledronic acid administered at a dose of 1 mg. |
91 | $7 | $23 |
| Chronic care management, first 30 minutes This service covers the initial 30 minutes of care coordination for patients with two or more chronic conditions. It is provided personally by a healthcare professional each calendar month. |
88 | $69 | $227 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
79 | $98 | $314 |
| Non-hormonal chemotherapy injection This procedure involves administering non-hormonal anti-neoplastic chemotherapy medication via injection into the skin or muscle tissue. |
78 | $65 | $208 |
| Irrigation of implanted venous access device This procedure involves flushing an implanted venous access device to clear blockages or maintain patency. It ensures the device remains functional for delivering medications or fluids. |
72 | $22 | $74 |
| Additional hour of intravenous hydration This code represents each additional hour of intravenous fluid administration beyond the initial hour. It is used to bill for extended hydration therapy. |
59 | $11 | $36 |
| Concurrent intravenous infusion Administration of medication or fluid into a vein for therapy, prevention, or diagnosis while another infusion is being given. |
56 | $17 | $56 |
| Urinalysis, manual A manual laboratory examination of a urine sample to check for various substances and cells. |
53 | $3 | $17 |
| 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. |
38 | $128 | $448 |
| Normal saline infusion, 1000 cc Administration of 1000 cc of normal saline solution into a vein. This procedure involves the intravenous delivery of a sterile saltwater solution. |
38 | $2 | $7 |
| Telephone medical discussion, 5-10 minutes A phone conversation with a physician lasting between 5 and 10 minutes to discuss medical matters. |
37 | $45 | $154 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
33 | $1 | $5 |
| Additional hour of intravenous infusion This code represents each additional hour of intravenous infusion beyond the initial hour for therapy, prevention, or diagnosis. |
31 | $18 | $58 |
| Telephone medical discussion, 11-20 minutes A phone conversation with a physician lasting between 11 and 20 minutes. |
25 | $77 | $246 |
| Office visit for established patient An office visit for an existing patient that may not require the healthcare professional to be present. |
21 | $19 | $66 |
| Prolonged office E/M service, first 15 minutes This code is used for additional time spent by a physician beyond the maximum required time of a primary office or outpatient evaluation and management service. It is billed in 15-minute increments based on total time spent on the date of the primary service. |
20 | $25 | $86 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
19 | $65 | $209 |
| Injection, fosnetupitant 235 mg and palonosetron 0.25 mg | 19 | $414 | $1,321 |
| Venipuncture for blood collection A procedure to draw blood from a vein for medical testing or analysis. |
18 | $84 | $281 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
17 | $29 | $75 |
| 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. |
16 | $143 | $458 |
| PSA test (prostate cancer screening) | 14 | $18 | $46 |
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. These counts do not measure clinical quality or years of experience.
25.0% high complexity
71.8% medium
3.2% routine
Industry Payment Transparency
Open Payments through 2024 ↗$3,862
Total received (2018-2024)
Avg $552/year across 7 years
Top 18% in CA for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
25
Companies
34
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →
Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$1,592
2023
$385
2022
$1,360
2021
$151
2020
$16
2019
$210
2018
$147
Payments by company (2024)
AstraZeneca Pharmaceuticals LP
$1,388
Janssen Biotech, Inc.
$128
PFIZER INC.
$26
Myriad Genetic Laboratories, Inc.
$18
Regeneron Healthcare Solutions, Inc.
$17
Tempus AI, Inc
$16
Top 3 companies account for 96.8% of 2024 payments
All-time payments by company (2018-2024) ›
AstraZeneca Pharmaceuticals LP
$1,418
Seagen Inc.
$1,215
E.R. Squibb & Sons, L.L.C.
$230
Daiichi Sankyo Inc.
$222
Janssen Biotech, Inc.
$148
Pharmacyclics LLC, An AbbVie Company
$80
BOSTON SCIENTIFIC CORPORATION
$77
Promega Corporation
$59
Lilly USA, LLC
$53
Boehringer Ingelheim Pharmaceuticals, Inc.
$50
CTI BioPharma Corp.
$27
PFIZER INC.
$26
AbbVie Inc.
$25
Takeda Pharmaceuticals U.S.A., Inc.
$25
TESARO, Inc.
$24
G1 Therapeutics, Inc.
$24
Rigel Pharmaceuticals, Inc.
$22
Sobi, Inc
$21
GlaxoSmithKline, LLC.
$20
Myriad Genetic Laboratories, Inc.
$18
Novocure Inc.
$18
Regeneron Healthcare Solutions, Inc.
$17
Celgene Corporation
$16
Tempus AI, Inc
$16
Gilead Sciences, Inc.
$12
Top 3 companies account for 74.1% of all-time payments
Associated products mentioned in payments ›
COSELA · DARZALEX · DOPTELET · ELREXFIO · EMPLICITI · Enhertu · FASLODEX · GILOTRIF · Imbruvica · LIBTAYO · ONUREG · OPDIVO · OPTUNE LUA (NOVOTTF-200T) · PADCEV · PRECISETUMOR · RYBREVANT · SPYGLASS · TRULICITY · Tavalisse · VENCLEXTA · VERZENIO · Vonjo · ZEJULA
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. 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 →
Geographic Context
Internal medicine physicians in nearby ZIP areas
148
County median income
$94,486
Nearest hospital to ZIP centroid (approximate)
COMMUNITY HOSPITAL OF THE MONTEREY PENINSULA
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | 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. Zhang is a mixed practice specialist, with above-average Medicare volume (top 0% in CA).
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Zhang experienced with iron infusion (injectafer)?
Based on Medicare claims data, Dr. Zhang performed 31,500 iron infusion (injectafer) services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Zhang receive payments from pharmaceutical companies?
Yes. Dr. Zhang received a total of $3,862 from 25 companies across 34 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. 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. Zhang's costs compare to other internal medicine physicians in Monterey?
Dr. Zhang's average Medicare payment per service is $6. 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. Zhang) 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 the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. 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?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
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About this page
This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: 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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