2026 NPPES data Dermatology Physician NPI 1710955349 M.D.
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THOMAS DOWNHAM, M.D.

Dermatology Physician in TAYLOR, Michigan. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
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
What the federal data reveals: THOMAS DOWNHAM, M.D. is a Dermatology Physician ([object Object]) practicing in TAYLOR, Michigan with a Medicare Part D prescribing footprint of 2K claims across 692 beneficiaries — 3% brand-name prescribing .

What stands out: THOMAS DOWNHAM, M.D. filed 2,178 Medicare Part D claims in 2023 across TAYLOR, Michigan. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

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).

THOMAS DOWNHAM, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 03/09/2006

NPI 1710955349

Primary specialty

Dermatology Physician

Mid-sized

14,610 US NPIs in this specialty

Medicare Part D claims

2,178 199% vs specialty avg

2023 prescription claims

Specialty avg: 729

Specialty distribution in Michigan

How Dermatology Physician compares to other specialties among Michigan providers

Michigan providers

Dermatology Physician share within Michigan

1. Dermatology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Dermatology Physician share within Michigan

Specialty board-certification context

Estimated specialty board-certified rate — Dermatology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Dermatology Physician ABMS/AOA estimate

Est. board-certified rate (Dermatology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Dermatology Physician) — ABMS / AOA estimate

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. is a Dermatology Physician provider practicing in TAYLOR, Michigan, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1710955349. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

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. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DOWNHAM most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

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. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Dermatology Physician is a mid-sized specialty nationwide, with 14,610 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

24555 HAIG ST
TAYLOR, MI 48180

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%
Specialty average (est.)

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.

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.

14,610
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.

Compare Dermatology Physician nationally: see state-by-state distribution →

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 14,610 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

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