NPI registry status
Active
2026 NPPES data Dermatology Physician NPI 1710955349 M.D.
Verify on CMS → Thomas Downham, M.D.
Dermatology Physician in Taylor, Michigan.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 14,645 in Dermatology 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
2K
Medicare Part D claims · 692 beneficiaries · Dermatology Physician avg: 729
Generic prescribing
97%
generic claims · 3% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Thomas Downham, M.D. filed 2,178 Medicare Part D claims in 2023 as a Dermatology Physician in Taylor, Michigan, prescribing 97% generic.
- 2K
- Part D claims, 2023
- 97%
- generic prescribing
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.
Thomas Downham, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,178 Top 15% higher than 85% 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-eligible specialty (heuristic, not verified)
Thomas Downham, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Thomas Downham, M.D.?
Quality data not reportedPrimary specialty
Dermatology Physician
Medicare Part D claims
2,178 199% vs specialty avg
Specialty distribution in Michigan
How Dermatology Physician compares to other specialties among Michigan 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 Dermatology 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).
Thomas Downham, M.D. appears in the CMS NPPES registry as a Dermatology Physician provider holding M.D. credentials at 24555 HAIG ST, Taylor, MI, 48180, with a listed phone of (313) 375-2101. NPI 1710955349 was issued on 03/09/2006.
Medicare Part D records for calendar year 2023 show 2,178 prescription claims written by this provider, covering 692 Medicare beneficiaries and totaling roughly $53K in drug spend, split 3% brand-name and 97% generic by claim count.
Dermatology Physician is a mid-sized specialty nationwide, with 14,645 enrolled providers across 53 states and an average of 729 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 | 1710955349 |
|---|---|
| Specialty | Dermatology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 03/09/2006 |
License & disciplinary context - Michigan MI-BOM 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 ~41K Michigan medical licensees in 2023 - they are NOT specific to Thomas Downham, M.D.. To verify Thomas Downham, M.D.'s current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases
MI-BOM 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 Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Generic-heavy
Thomas Downham, M.D. - brand share 3.0%
Dermatology Physician average
3% brand-name claims vs 97% generic, on 2,178 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.
2,178
Total Claims
$53K
Total Drug Cost
692
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,852
- Total Day Supply
- 76,521
- Brand vs Generic
- 3% brand / 97% generic
- Brand Drug Cost
- $4K
- Generic Drug Cost
- $49K
- Antibiotic Claims
- 177
Patient Demographics
- Average Patient Age
- 73.1 years
- Avg HCC Risk Score
- 1.31
- Gender Split
- 51% female / 49% male
- Age Distribution
- <65: 90, 65-74: 285, 75-84: 228, 85+: 89
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Thomas Downham, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Hydrocortisone
Hydrocortisone
461 claims
- Triamcinolone Acet…
Triamcinolone Acetonide
438 claims
- Ammonium Lactate
Ammonium Lactate
311 claims
- Doxycycline Hyclate 161
Doxycycline Hyclate
161 claims
- Clotrimazole 156
Clotrimazole
156 claims
- Clindamycin Phosph… 108
Clindamycin Phosphate
108 claims
- Ketoconazole 65
Ketoconazole
65 claims
- Mupirocin 64
Mupirocin
64 claims
| Drug | Claims |
|---|---|
| Hydrocortisone | 461 |
| Triamcinolone Acetonide | 438 |
| Ammonium Lactate | 311 |
| Doxycycline Hyclate | 161 |
| Clotrimazole | 156 |
| Clindamycin Phosphate | 108 |
| Ketoconazole | 65 |
| Mupirocin | 64 |
| Desonide | 53 |
| Betamethasone Valerate | 44 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Dermatology Physician Overview
How Thomas Downham, M.D. fits within the Dermatology Physician landscape nationally.
14,645
Dermatology Physician Providers in US
53
States with Dermatology Physician
729
Avg Claims per Provider
Thomas Downham, M.D.'s 2,178 claims are above the specialty average of 729.
Nearby Dermatology Physician Providers in Michigan
Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as Downham.
Dr. Sami Abbasi
DO
Woodhaven, MI
Dr. Martin Abbrecht
MD
Birmingham, MI
Dr. Abraham Abdulhak
MD
Dearborn, MI
Dr. Stephanie Abul
MD
Chesterfield, MI
Dr. Taylor Adlam
MD
Dearborn, MI
Compare Dermatology 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 Michigan medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Dermatology 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
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Michigan
Frequently Asked Questions
What is Thomas Downham, M.D.'s specialty? ▼
Thomas Downham, M.D. specializes in Dermatology Physician and practices in Taylor, Michigan. Credentials: M.D..
How much does Thomas Downham, M.D. prescribe under Medicare Part D? ▼
In 2023, Thomas Downham, M.D. wrote 2,178 Medicare Part D claims totaling $53K in drug costs for 692 beneficiaries.
Where is Thomas Downham, M.D. located? ▼
Thomas Downham, M.D. is located at 24555 HAIG ST, Taylor, MI, 48180. Phone: (313) 375-2101.
What is Thomas Downham, M.D.'s NPI number? ▼
Thomas Downham, M.D.'s National Provider Identifier (NPI) is 1710955349, issued on 03/09/2006.
Does Thomas Downham, M.D. prescribe more brand-name or generic drugs? ▼
Thomas Downham, M.D.'s prescribing is 3% brand-name and 97% generic drugs by claim count, with $4K in brand drug costs.
How many Dermatology Physician providers are there in the US? ▼
There are 14,645 Dermatology Physician providers across 53 states in the US. The average Dermatology Physician provider writes 729 Medicare Part D claims per year.
What drugs does Thomas Downham, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Thomas Downham, M.D.'s most frequently prescribed drugs include Hydrocortisone, Triamcinolone Acetonide, Ammonium Lactate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Thomas Downham, M.D. accept Medicare? ▼
Thomas Downham, M.D. appears in CMS Medicare data with 2,178 Part D claims and 692 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Thomas Downham, M.D.'s credentials? ▼
Thomas Downham, M.D.'s NPI is 1710955349 with credentials M.D.. 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.