2026 NPPES data Dermatology Physician NPI 1639512551 M.D.
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ADRIENNE CALLAHAN, M.D.

Dermatology Physician in WESTLAKE, Ohio. 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
937
Medicare Part D claims · 281 beneficiaries · Dermatology Physician avg: 729
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
79.4829/100
▼ 4 pts below national avg 83.1 · [object Object]
What the federal data reveals: ADRIENNE CALLAHAN, M.D. is a Dermatology Physician ([object Object]) practicing in WESTLAKE, Ohio with a Medicare Part D prescribing footprint of 937 claims across 281 beneficiaries — 17% brand-name prescribing . Their CMS MIPS Final Score of 79.4829/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: ADRIENNE CALLAHAN, M.D. reported a CMS MIPS final score of 79.4829 out of 100, below the 83.1 national average, and filed 937 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ADRIENNE CALLAHAN, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

ADRIENNE CALLAHAN, M.D. at a glance

Near national average

NPI registry status

Active

Issued 04/10/2013

NPI 1639512551

Primary specialty

Dermatology Physician

Mid-sized

14,610 US NPIs in this specialty

Medicare Part D claims

937 29% vs specialty avg

2023 prescription claims

Specialty avg: 729

MIPS final score

79.4829/100 3.6170999999999935% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Ohio

How Dermatology Physician compares to other specialties among Ohio providers

Ohio providers

Dermatology Physician share within Ohio

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

Medicare quality performance — MIPS

ADRIENNE CALLAHAN, M.D.'s 2023 MIPS final score plotted against the Dermatology Physician national average

Near national average
MIPS Final Score
79.4829/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Dermatology Physician) — 79.4829/100 vs national avg 83.1

0%100%National avg83%79.5%
MIPS final score (Dermatology Physician) — 79.4829/100 vs national avg 83.1

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).

ADRIENNE CALLAHAN, M.D. is a Dermatology Physician provider practicing in WESTLAKE, Ohio, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1639512551. 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.

ADRIENNE CALLAHAN, M.D. appears in the CMS NPPES registry as a Dermatology Physician provider holding M.D. credentials at 950 CLAGUE RD STE 104, WESTLAKE, OH, 44145, with a listed phone of (440) 250-2452. NPI 1639512551 was issued on 04/10/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CALLAHAN 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 937 prescription claims written by this provider, covering 281 Medicare beneficiaries and totaling roughly $1.1 million in drug spend, split 17% brand-name and 83% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.4829/100 for the 2023 performance year (Quality 68.5144, Cost 63.0952), compared with the national average of 83.1.

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

950 CLAGUE RD STE 104
WESTLAKE, OH 44145

Provider Details

NPI 1639512551
Specialty Dermatology Physician
Credentials M.D.
Gender Female
NPI Issued 04/10/2013

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

79.4829
Final Score
Avg: 83.1
68.5144
Quality
63.0952
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where ADRIENNE CALLAHAN, M.D. 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.

UNIVERSITY HOSPITALS MEDICAL GROUP INC
CLEVELAND, OH

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — Ohio OMB 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 ~48K Ohio medical licensees in 2023 — they are NOT specific to ADRIENNE CALLAHAN, M.D.. To verify ADRIENNE CALLAHAN, M.D.'s current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases

OMB 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 Ohio disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

ADRIENNE CALLAHAN, M.D. — brand share 17.0%
Specialty average (est.)

17% brand-name claims vs 83% generic, on 937 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.

937
Total Claims
$1.1M
Total Drug Cost
281
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,176
Total Day Supply
32,317
Brand vs Generic
17% brand / 83% generic
Brand Drug Cost
$1.0M
Generic Drug Cost
$40K
Antibiotic Claims
31

Patient Demographics

Average Patient Age
72.4 years
Avg HCC Risk Score
1.14
Gender Split
58% female / 42% male
Age Distribution
<65: 25, 65-74: 146, 75-84: 82, 85+: 28

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Ketoconazole
157
Clobetasol Propionate
99
Triamcinolone Acetonide
83
Clindamycin Phosphate
39
Tremfya
Guselkumab
34
Hydrocortisone
30
Fluocinonide
29
Metronidazole
26
Spironolactone
25
Terbinafine Hcl
24

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Dermatology Physician Overview

How ADRIENNE CALLAHAN, 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

ADRIENNE CALLAHAN, M.D.'s 937 claims are above the specialty average of 729.

Nearby Dermatology Physician Providers in Ohio

Other clinicians with the same primary specialty enrolled in Ohio, drawn from the same CMS NPPES roster as CALLAHAN.

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

Frequently Asked Questions

What is ADRIENNE CALLAHAN, M.D.'s specialty?
ADRIENNE CALLAHAN, M.D. specializes in Dermatology Physician and practices in WESTLAKE, Ohio. Credentials: M.D..
How much does ADRIENNE CALLAHAN, M.D. prescribe under Medicare Part D?
In 2023, ADRIENNE CALLAHAN, M.D. wrote 937 Medicare Part D claims totaling $1.1M in drug costs for 281 beneficiaries.
What is ADRIENNE CALLAHAN, M.D.'s Medicare quality score?
ADRIENNE CALLAHAN, M.D. has a CMS MIPS Final Score of 79.4829/100 (Quality: 68.5144, Cost: 63.0952). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ADRIENNE CALLAHAN, M.D. located?
ADRIENNE CALLAHAN, M.D. is located at 950 CLAGUE RD STE 104, WESTLAKE, OH, 44145. Phone: (440) 250-2452.
What is ADRIENNE CALLAHAN, M.D.'s NPI number?
ADRIENNE CALLAHAN, M.D.'s National Provider Identifier (NPI) is 1639512551, issued on 04/10/2013.
Does ADRIENNE CALLAHAN, M.D. prescribe more brand-name or generic drugs?
ADRIENNE CALLAHAN, M.D.'s prescribing is 17% brand-name and 83% generic drugs by claim count, with $1.0M 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 ADRIENNE CALLAHAN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ADRIENNE CALLAHAN, M.D.'s most frequently prescribed drugs include Ketoconazole, Clobetasol Propionate, Triamcinolone Acetonide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ADRIENNE CALLAHAN, M.D. accept Medicare?
ADRIENNE CALLAHAN, M.D. appears in CMS Medicare data with 937 Part D claims and 281 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ADRIENNE CALLAHAN, M.D.'s credentials?
ADRIENNE CALLAHAN, M.D.'s NPI is 1639512551 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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