NPI registry status
Active
2026 NPPES data Dermatopathology Physician NPI 1548490212 MD
Verify on CMS → John Griffin, MD
Dermatopathology Physician in Houston, Texas.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 570 in Dermatopathology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
994
Medicare Part D claims · 300 beneficiaries · Dermatopathology Physician avg: 650
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$14.66
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
John Griffin, MD filed 994 Medicare Part D claims in 2023 as a Dermatopathology Physician in Houston, Texas, prescribing 90% generic.
- 994
- Part D claims, 2023
- 90%
- generic prescribing
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
John Griffin, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
994 Top 25% higher than 75% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
John Griffin, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about John Griffin, MD?
Quality data not reportedPrimary specialty
Dermatopathology Physician
Medicare Part D claims
994 53% vs specialty avg
Specialty distribution in Texas
How Dermatopathology Physician compares to other specialties among Texas providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Dermatopathology Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
John Griffin, MD appears in the CMS NPPES registry as a Dermatopathology Physician provider holding MD credentials at 1001 CAMPBELL RD, Houston, TX, 77055, with a listed phone of (713) 442-6900. NPI 1548490212 was issued on 07/16/2009.
Medicare Part D records for calendar year 2023 show 994 prescription claims written by this provider, covering 300 Medicare beneficiaries and totaling roughly $685K in drug spend, split 10% brand-name and 90% generic by claim count.
Dermatopathology Physician is a narrow specialty nationwide, with 570 enrolled providers across 48 states and an average of 650 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1548490212 |
|---|---|
| Specialty | Dermatopathology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/16/2009 |
Hospital and facility affiliations
Facilities where John Griffin, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Kelsey-Seybold Medical Group, PLLC
Houston, TX
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for John Griffin, MD. Source: openpaymentsdata.cms.gov.
Total received
$15
Largest payer
Galderma Laboratories, L.P.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - Texas TMB 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~77K Texas medical licensees in 2023 - they are NOT specific to John Griffin, MD. To verify John Griffin, MD's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases
TMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
John Griffin, MD - brand share 10.0%
Dermatopathology Physician average
10% brand-name claims vs 90% generic, on 994 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
994
Total Claims
$685K
Total Drug Cost
300
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,284
- Total Day Supply
- 35,612
- Brand vs Generic
- 10% brand / 90% generic
- Brand Drug Cost
- $641K
- Generic Drug Cost
- $45K
- Antibiotic Claims
- 34
Patient Demographics
- Average Patient Age
- 74.6 years
- Avg HCC Risk Score
- 1.31
- Gender Split
- 47% female / 53% male
- Age Distribution
- <65: 14, 65-74: 135, 75-84: 122, 85+: 29
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What John Griffin, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ketoconazole
Ketoconazole
113 claims
- Triamcinolone Acet…
Triamcinolone Acetonide
75 claims
- Clobetasol Propion…
Clobetasol Propionate
52 claims
- Fluorouracil 43
Fluorouracil
43 claims
- Hydrocortisone 42
Hydrocortisone
42 claims
- Mupirocin 36
Mupirocin
36 claims
- Calcipotriene 33
Calcipotriene
33 claims
- Tacrolimus 31
Tacrolimus
31 claims
| Drug | Claims |
|---|---|
| Ketoconazole | 113 |
| Triamcinolone Acetonide | 75 |
| Clobetasol Propionate | 52 |
| Fluorouracil | 43 |
| Hydrocortisone | 42 |
| Mupirocin | 36 |
| Calcipotriene | 33 |
| Tacrolimus | 31 |
| Humira(Cf) Pen Adalimumab | 27 |
| Methotrexate Methotrexate Sodium | 26 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Dermatopathology Physician Overview
How John Griffin, MD fits within the Dermatopathology Physician landscape nationally.
570
Dermatopathology Physician Providers in US
48
States with Dermatopathology Physician
650
Avg Claims per Provider
John Griffin, MD's 994 claims are above the specialty average of 650.
Nearby Dermatopathology Physician Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Griffin.
Dr. Prapand Apisarnthanarax
M.D., F.A.C.P.
Webster, TX
Dr. Nicole Bender
M.D.
Houston, TX
Dr. Jason Blaser
MD
Tyler, TX
Dr. Patricia Castaneda
M.D.
San Antonio, TX
Dr. Melissa Chiang
MD
Spring, TX
Compare Dermatopathology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Texas medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Dermatopathology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
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Understanding Medicare Claims Data
What prescribing data reveals about a provider
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How insurance networks affect your costs
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Frequently Asked Questions
What is John Griffin, MD's specialty? ▼
John Griffin, MD specializes in Dermatopathology Physician and practices in Houston, Texas. Credentials: MD.
How much does John Griffin, MD prescribe under Medicare Part D? ▼
In 2023, John Griffin, MD wrote 994 Medicare Part D claims totaling $685K in drug costs for 300 beneficiaries.
Where is John Griffin, MD located? ▼
John Griffin, MD is located at 1001 CAMPBELL RD, Houston, TX, 77055. Phone: (713) 442-6900.
What is John Griffin, MD's NPI number? ▼
John Griffin, MD's National Provider Identifier (NPI) is 1548490212, issued on 07/16/2009.
Does John Griffin, MD prescribe more brand-name or generic drugs? ▼
John Griffin, MD's prescribing is 10% brand-name and 90% generic drugs by claim count, with $641K in brand drug costs.
How many Dermatopathology Physician providers are there in the US? ▼
There are 570 Dermatopathology Physician providers across 48 states in the US. The average Dermatopathology Physician provider writes 650 Medicare Part D claims per year.
What drugs does John Griffin, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, John Griffin, MD's most frequently prescribed drugs include Ketoconazole, Triamcinolone Acetonide, Clobetasol Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Griffin, MD accept Medicare? ▼
John Griffin, MD appears in CMS Medicare data with 994 Part D claims and 300 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Griffin, MD's credentials? ▼
John Griffin, MD's NPI is 1548490212 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.