Mark McKinley Ash, M.D.
Dermatology Physician · Clay, NY
Mark McKinley Ash, M.D. is a dermatology physician with a practice address in Clay, New York, and NPI 1710419379, issued on Mar 31, 2017. Check the license (New York 309640, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Mark McKinley Ash
- Credential
- M.D.
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 309640 NY
Self-reported in NPPES; status is on the state search - Practice location
- 4106 Route 31 # 904, Clay, NY 13041
- Phone
- (315) 500-3376
- Enumerated
- Mar 31, 2017
- Record last updated
- Jan 23, 2026
- Fax
- (315) 600-3376
- Medicare enrollment
- Enrolled (PECOS I20210709002496); accepts Medicare assignment
- Medical or professional school
- Brody School Of Medicine At East Carolina University, 2017
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 1,211 in New York → Look up another NPI →
Verify Mark McKinley Ash in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 309640Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% more Medicare Part D claims than the average dermatology physician in 2024
1,537 Medicare Part D claims for 485 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Ketoconazole251 claims
- Clobetasol Propionate199 claims
- Mupirocin166 claims
- Fluorouracil116 claims
- Triamcinolone Acetonide115 claims
- Tacrolimus73 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 82.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $3,301.41
175 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Mark McKinley Ash among 1,211 dermatology physician records in New York
Mark McKinley Ash, M.D. is one of 1,211 dermatology physician records with a practice address in New York. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 81% of them.
- NPI issued2017 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2017 · median 2004 among the 880 with a school on file
- Record last updated2026 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 dermatology physician record lists a practice address in Clay
They are 1 of the 48 NPPES records with a practice address in Clay, and 1,211 dermatology physician records in New York.
All 1,211 in New York → Every provider in Clay → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Jasmine Ahmadi, M.D.East Syracuse, NY 130571518141613
- Daniel Bryan, MDEast Syracuse, NY 130571003229931
- Jeffrey Cizenski, MDEast Syracuse, NY 130571821437104
- Madhavi Menon, MDEast Syracuse, NY 130571538278338
- Hannah Singer, MDEast Syracuse, NY 130571801391511
- Virginia Tracey, M.D.East Syracuse, NY 130571336584523
- Anthony Chiaravalloti, MDAuburn, NY 130211598178378
- Jeffrey Laduca, PH. D, MDAuburn, NY 130211053371450
Common questions
What is Mark McKinley Ash, M.D.'s NPI number?
Mark McKinley Ash, M.D.'s National Provider Identifier (NPI) is 1710419379, issued on Mar 31, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Mark McKinley Ash, M.D. located?
The NPPES record lists a practice address at 4106 Route 31 # 904, Clay, NY, 13041. Phone: (315) 500-3376. Providers update this record themselves, so call before visiting.
How can I verify Mark McKinley Ash, M.D.'s license?
NPPES lists New York license number 309640, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark McKinley Ash, M.D. prescribe under Medicare Part D?
In 2024, Mark McKinley Ash, M.D. had 1,537 Medicare Part D claims for 485 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Mark McKinley Ash, M.D.'s MIPS final score?
The 2023 MIPS final score is 82.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.