Mari Perez-Rosendahl, M.D.
NPI 1548620404 · Neuropathology Physician · Orange, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mari Perez-Rosendahl, M.D. is a Neuropathology Physician provider in Orange, CA (NPI 1548620404).
Provider details
- NPI number
- 1548620404
- Entity type
- Individual
- Primary specialty
- Neuropathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A141371 (CA)
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
10 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
145 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) |
|---|---|---|
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 60 | $29 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 36 | $84 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 25 | $36 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 24 | $38 |
Typical Medicare-allowed amounts for these services range $29–$84 (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
Registry dates
- Enumerated
- 2016-03-03
- Last updated
- 2018-07-03
Frequently asked questions
- What is Mari Perez-Rosendahl's NPI number?
- Mari Perez-Rosendahl's National Provider Identifier (NPI) is 1548620404, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mari Perez-Rosendahl's specialty?
- Mari Perez-Rosendahl is listed in the NPPES registry with a primary specialty of Neuropathology Physician (Allopathic & Osteopathic Physicians).
- Where is Mari Perez-Rosendahl located?
- Mari Perez-Rosendahl's practice location on file with NPPES is 101 the City Dr S, Orange, CA 92868.
- What is Mari Perez-Rosendahl's phone number?
- The practice phone number listed in the NPPES registry for Mari Perez-Rosendahl is (714) 456-6141.
- Does Mari Perez-Rosendahl accept Medicare?
- Mari Perez-Rosendahl is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mari Perez-Rosendahl's NPI active?
- Yes — Mari Perez-Rosendahl's NPI (1548620404) is active in the NPPES registry as of the last update on 2018-07-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.