Mariam Youssef, M.D.
NPI 1649703976 · Anatomic Pathology & Clinical Pathology Physician · Cleveland, OH
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mariam Youssef, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Cleveland, OH (NPI 1649703976).
Provider details
- NPI number
- 1649703976
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 35.144125 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
751 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) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 395 | $34 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 142 | $26 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 73 | $32 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 58 | $75 |
| Pathology Examination of Tissue Using a Microscope, Moderately Low Complexity88304 | 36 | $11 |
| Microscopic Genetic Analysis of Tumor, Manual88360 | 34 | $38 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-04-04
- Last updated
- 2023-11-03
- Certified
- 2022-06-29
Frequently asked questions
- What is Mariam Youssef's NPI number?
- Mariam Youssef's National Provider Identifier (NPI) is 1649703976, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mariam Youssef's specialty?
- Mariam Youssef is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Mariam Youssef located?
- Mariam Youssef's practice location on file with NPPES is 2500 Metrohealth Dr, Cleveland, OH 44109-1900.
- What is Mariam Youssef's phone number?
- The practice phone number listed in the NPPES registry for Mariam Youssef is (216) 778-7800.
- Does Mariam Youssef accept Medicare?
- Mariam Youssef is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mariam Youssef's NPI active?
- Yes — Mariam Youssef's NPI (1649703976) is active in the NPPES registry as of the last update on 2023-11-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.