Medicare Enrolled
Dr. Joseph Diehl, M.D.
Student in an Organized Health Care Education/Training Program · Sn Luis Obisp, CA
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Low-engagement
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. Diehl 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. Diehl
Dr. Joseph Diehl is a student in an organized health care education/training program specialist in Sn Luis Obisp, CA, with 15 years of NPI registration. Based on federal Medicare data, Dr. Diehl performed 19,790 Medicare services across 10,448 unique beneficiaries.
Between the years covered by Open Payments, Dr. Diehl received a total of $2,829 from 22 pharmaceutical and/or device companies across 66 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in student in an organized health care education/training program. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Diehl 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.
✓ 15 years in practice
▲ Top 1% volume in CA
$2,829 industry payments
Medicare Practice Summary
Medicare Utilization ↗19,790
Medicare services
Top 1% in CA for student in an organized health care education/training program
10,448
Unique beneficiaries
$80
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~1,319 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 |
|---|---|---|---|
| Destruction of precancerous skin growths, 2-14 This procedure involves the removal or destruction of two to fourteen precancerous skin lesions. It is performed to eliminate abnormal skin cells that have the potential to develop into cancer. |
7,584 | $6 | $8 |
| 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. |
2,795 | $63 | $97 |
| Destruction of precancerous skin growth, 1 Removal of a single precancerous skin growth. This procedure destroys abnormal skin cells to prevent them from developing into cancer. |
2,107 | $42 | $74 |
| Destruction of skin growths (warts/lesions), 1-14 This procedure involves the removal or destruction of one to fourteen skin growths. It is a minor surgical intervention performed on the skin surface. |
1,007 | $86 | $127 |
| 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. |
877 | $92 | $137 |
| Destruction of 15 or more precancerous skin growths This procedure involves the removal or destruction of fifteen or more precancerous skin lesions. It is performed to treat abnormal skin cells that have the potential to develop into cancer. |
669 | $136 | $185 |
| Skin biopsy, tangential A procedure to remove a sample of the first identified skin growth for laboratory examination. |
623 | $70 | $114 |
| Skin growth removal and lab exam, 1-5 blocks This procedure involves the removal of a growth from the head, neck, hands, feet, or genitals. The removed tissue is then examined under a microscope in the laboratory. |
623 | $536 | $756 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
426 | $76 | $121 |
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks | 408 | $358 | $460 |
| Affinity per square centimeter A measurement of affinity per square centimeter. |
392 | $301 | $384 |
| 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. |
303 | $41 | $63 |
| UV therapy with tar or petroleum jelly A treatment using ultraviolet radiation combined with the application of tar or petroleum jelly to the skin. |
280 | $104 | $133 |
| Complicated wound repair, 2.6-7.5 cm A complex surgical procedure to close a wound measuring between 2.6 and 7.5 centimeters on areas such as the face, neck, hands, or feet. |
247 | $219 | $523 |
| 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. |
188 | $125 | $176 |
| Destruction of cancer skin growth, 1.1-2.0 cm Removal of a cancerous skin growth on the trunk, arms, or legs that measures between 1.1 and 2.0 centimeters. |
171 | $133 | $195 |
| Skin growth removal and lab exam, 1-5 blocks A procedure to remove a growth from the trunk, arms, or legs and send 1 to 5 tissue samples to a laboratory for microscopic examination. |
101 | $500 | $724 |
| Complicated wound repair, scalp/arms/legs, 2.6-7.5 cm A complex surgical procedure to close a wound on the scalp, arms, or legs that measures between 2.6 and 7.5 centimeters in length. |
92 | $225 | $481 |
| Additional skin growth biopsy Removal of a sample of an additional skin growth for laboratory examination. This code is used for each extra lesion biopsied during the same session. |
85 | $44 | $56 |
| Destruction of cancer skin growth, 0.6-1.0 cm This procedure involves the removal or destruction of a cancerous skin growth located on the trunk, arms, or legs that measures between 0.6 and 1.0 centimeters. |
78 | $104 | $162 |
| Destruction of cancer skin growth of scalp, neck, hands, feet, or genitals, 1.1-2.0 cm | 49 | $138 | $209 |
| Complex repair of eyelid, nose, ear, or lip wound, 2.6-7.5 cm A surgical procedure to repair a complex wound on the eyelid, nose, ear, or lip that measures between 2.6 and 7.5 centimeters. |
48 | $223 | $548 |
| Shaving of skin growth, 0.6-1.0 cm A minor procedure to shave off a skin growth on the body, arms, or legs that measures between 0.6 and 1.0 centimeters. |
44 | $86 | $137 |
| Additional Mohs surgery stage with microscopic exam This procedure involves the removal and microscopic examination of an additional stage of tissue from the trunk, arms, or legs. It is performed in stages to ensure complete removal of the growth. |
43 | $345 | $449 |
| Destruction of cancerous skin growth on face, 0.6-1.0 cm This procedure involves the removal or destruction of a cancerous skin lesion located on the face, ears, eyelids, nose, lips, or mouth. The lesion treated measures between 0.6 and 1.0 centimeters in diameter. |
42 | $137 | $196 |
| Destruction of cancer skin growth, 0.6-1.0 cm This procedure involves the removal or destruction of a cancerous skin growth measuring 0.6 to 1.0 centimeters. It is performed on the scalp, neck, hands, feet, or genitals. |
41 | $121 | $182 |
| Ear tissue biopsy A procedure to remove a small sample of tissue from the ear for laboratory examination. |
41 | $63 | $107 |
| Complicated wound repair of trunk, 2.6-7.5 cm A surgical procedure to close a complex wound on the trunk that measures between 2.6 and 7.5 centimeters in length. |
39 | $295 | $450 |
| Skin substitute graft application, 25 sq cm or less Application of a skin substitute graft to a wound on the trunk, arms, or legs covering 25 square centimeters or less. |
37 | $129 | $165 |
| Intermediate repair of wound of face, ears, eyelids, nose, lips, or mouth, 2.6-5.0 cm | 34 | $141 | $359 |
| Simple drainage of skin abscess A minor procedure to drain a localized collection of pus from the skin. The abscess is opened to allow the fluid to escape and promote healing. |
32 | $106 | $137 |
| Complex wound repair, 1.1-2.5 cm A surgical procedure to close a complex wound measuring between 1.1 and 2.5 centimeters on areas such as the face, neck, hands, or feet. |
32 | $184 | $425 |
| Destruction of cancerous skin growth on face, 1.1-2.0 cm This procedure involves the removal or destruction of a cancerous skin lesion located on the face, ears, eyelids, nose, lips, or mouth. The lesion treated measures between 1.1 and 2.0 centimeters in diameter. |
27 | $158 | $225 |
| Steroid injection (triamcinolone) A 10 mg injection of triamcinolone acetonide, a corticosteroid medication. This code specifies the drug and dosage administered. |
22 | $1 | $1 |
| Punch biopsy of first skin growth A small, circular piece of skin is removed from a skin growth using a circular blade. The sample is then sent to a laboratory for examination. |
21 | $111 | $147 |
| Intermediate wound repair, 2.6-7.5 cm A medical procedure to close a wound on the scalp, underarms, trunk, arms, or legs that measures between 2.6 and 7.5 centimeters. This type of repair involves cleaning the wound and stitching it closed to promote healing. |
19 | $182 | $358 |
| Complex repair of eyelid, nose, ear, or lip wound, 1.1-2.5 cm A surgical procedure to repair a complex wound on the eyelid, nose, ear, or lip that measures between 1.1 and 2.5 centimeters. |
19 | $183 | $476 |
| Shaving of skin growth on face, 0.6-1.0 cm This procedure involves shaving off a skin growth located on the face, ears, eyelids, nose, lips, or mouth. The size of the growth being removed is between 0.6 and 1.0 centimeters. |
18 | $107 | $153 |
| Skin graft repair of eyelid, nose, ear, or lip, 10 sq cm or less A surgical procedure to repair a wound on the eyelid, nose, ear, or lip by transferring a small piece of skin. The transferred skin covers an area of 10 square centimeters or less. |
17 | $620 | $853 |
| Removal of noncancer skin growth, 1.1-2.0 cm This procedure involves the surgical removal of a benign skin growth located on the body, arms, or legs. The growth measured between 1.1 and 2.0 centimeters in diameter. |
14 | $80 | $202 |
| Surgical removal of skin cancer, 2.1-3.0 cm This procedure involves the surgical excision of a cancerous skin growth located on the body, arms, or legs. The size of the removed tissue measures between 2.1 and 3.0 centimeters. |
14 | $129 | $309 |
| Shaving of skin growth, 1.1-2.0 cm This procedure involves shaving off a skin growth measuring between 1.1 and 2.0 centimeters from the body, arms, or legs. |
13 | $104 | $155 |
| Shaving of skin growth, 0.6-1.0 cm A minor procedure to shave off a skin growth measuring 0.6 to 1.0 cm from the scalp, neck, hands, feet, or genitals. |
13 | $104 | $139 |
| Shaving of skin growth, 1.1-2.0 cm Removal of a skin growth by shaving the surface. The procedure is performed on the scalp, neck, hands, feet, or genitals and involves a lesion measuring between 1.1 and 2.0 centimeters. |
11 | $122 | $152 |
| Shaving of skin growth, 1.1-2.0 cm Removal of a skin growth by shaving the surface of the skin. The procedure is performed on the face, ears, eyelids, nose, lips, or mouth and involves a lesion measuring between 1.1 and 2.0 centimeters. |
11 | $127 | $170 |
| Full thickness skin graft to nose, ears, eyelids, or lips, 20 sq cm or less A surgical procedure where a full layer of skin is taken from a donor site and transplanted to the nose, ears, eyelids, or lips. The graft covers an area of 20 square centimeters or less. |
11 | $854 | $1,064 |
| Destruction of cancerous skin growth, 2.1-3.0 cm This procedure involves the removal or destruction of a cancerous skin lesion measuring between 2.1 and 3.0 centimeters located on the trunk, arms, or legs. |
11 | $156 | $209 |
| Lip biopsy A procedure to remove a small sample of tissue from the lip for laboratory examination. |
11 | $82 | $133 |
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.
0.2% high complexity
4.1% medium
95.7% routine
Industry Payment Transparency
Open Payments through 2024 ↗$2,829
Total received (2018-2024)
Avg $472/year across 6 years
Top 11% in CA for student in an organized health care education/training program
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
22
Companies
66
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.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$2,829 (100.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$736
2023
$878
2021
$72
2020
$240
2019
$519
2018
$385
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Organogenesis Inc.
$181
PFIZER INC.
$124
E.R. Squibb & Sons, L.L.C.
$123
ABBVIE INC.
$107
Amgen Inc.
$103
UCB, Inc.
$98
Top 3 companies account for 58.1% of 2024 payments
All-time payments by company (2018-2024) ›
Lilly USA, LLC
$491
Organogenesis Inc.
$418
GENZYME CORPORATION
$396
PFIZER INC.
$248
E.R. Squibb & Sons, L.L.C.
$248
UCB, Inc.
$134
Janssen Scientific Affairs, LLC
$125
DUSA Pharmaceuticals, Inc.
$123
ABBVIE INC.
$107
Biofrontera Inc.
$106
Amgen Inc.
$103
LEO Pharma Inc.
$103
Janssen Biotech, Inc.
$39
Genentech USA, Inc.
$35
Regeneron Healthcare Solutions, Inc.
$33
SUN PHARMACEUTICAL INDUSTRIES INC.
$24
Sun Pharmaceutical Industries Inc.
$20
Galderma Laboratories, L.P.
$18
Helsinn Therapeutics (U.S.), Inc.
$17
Ortho Dermatologics, a division of Bausch Health US, LLC
$16
AbbVie, Inc.
$13
Novartis Pharmaceuticals Corporation
$12
Top 3 companies account for 46.1% of all-time payments
Associated products mentioned in payments ›
20% · AFFINITY · AMELUZ · Ameluz · BLU-U Blue Light Photodynamic Therapy Illuminator Model 4170 · Bimzelx · CIBINQO · COSENTYX · Cimzia · DERMATITIS - DISEASE · DUOBRII · DUPIXENT · ENSTILAR · Erivedge · Humira · ILUMYA · Ilumya · LEVULAN KERASTICK · LIBTAYO · LITFULO · Levulan Kerastick (aminolevulinic acid HCl) for Topical Solution · Otezla · PICATO · Puraply · SKYRIZI · Sotyktu · TALTZ · TREMFYA · Tremfya · VALCHLOR
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 →
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Student in an organized health care education/training programs within 10 mi
104
Per 100K population
36.9
County median income
$93,398
Nearest hospital
ADVENTIST HEALTH SIERRA VISTA
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. Diehl is a clinical cardiology specialist, with above-average Medicare volume (top 1% in CA), with low-engagement industry engagement in the top 11% of CA peers, with 15 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. Diehl experienced with destruction of precancerous skin growths, 2-14?
Based on Medicare claims data, Dr. Diehl performed 7,584 destruction of precancerous skin growths, 2-14 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. Diehl receive payments from pharmaceutical companies?
Yes. Dr. Diehl received a total of $2,829 from 22 companies across 66 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. Diehl's costs compare to other student in an organized health care education/training programs in Sn Luis Obisp?
Dr. Diehl's average Medicare payment per service is $80. 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. Diehl) 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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