Mark Ewalt, M.D.
NPI 1497998512 · Molecular Genetic Pathology (Pathology) Physician · New York, NY
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Ewalt, M.D. is a Molecular Genetic Pathology (Pathology) Physician provider in New York, NY (NPI 1497998512).
Provider details
- NPI number
- 1497998512
- Entity type
- Individual
- Primary specialty
- Molecular Genetic Pathology (Pathology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- DR.0058760 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,079 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Interpretation and Report of Genetic Testing88291 | 613 | $37 |
| Molecular Pathology Procedure; Physician Interpretation and ReportG0452 | 466 | $49 |
Typical Medicare-allowed amounts for these services range $37–$49 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (2)
- 8700 Beverly BlvdSpt Room 4703West Hollywood, CA 90048-1804Phone: (310) 423-4551
- 12605 E 16th AveAurora, CO 80045-2545Phone: (720) 848-0000
Registry dates
- Enumerated
- 2009-04-20
- Last updated
- 2021-08-25
- Certified
- 2021-08-25
Frequently asked questions
- What is Mark Ewalt's NPI number?
- Mark Ewalt's National Provider Identifier (NPI) is 1497998512, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Ewalt's specialty?
- Mark Ewalt is listed in the NPPES registry with a primary specialty of Molecular Genetic Pathology (Pathology) Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Ewalt located?
- Mark Ewalt's practice location on file with NPPES is 1275 York Avenue, New York, NY 10065.
- What is Mark Ewalt's phone number?
- The practice phone number listed in the NPPES registry for Mark Ewalt is (212) 639-8137.
- Does Mark Ewalt accept Medicare?
- Mark Ewalt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Ewalt's NPI active?
- Yes — Mark Ewalt's NPI (1497998512) is active in the NPPES registry as of the last update on 2021-08-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.