Marilynn Fairfax, MD
NPI 1962440081 · Clinical Pathology Physician · Detroit, MI
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marilynn Fairfax, MD is a Clinical Pathology Physician provider in Detroit, MI (NPI 1962440081).
Provider details
- NPI number
- 1962440081
- Entity type
- Individual
- Primary specialty
- Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 4301058560 (MI)
Specialties & taxonomies
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
20 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
2,157 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) |
|---|---|---|
| Protein Measurement, Serum84165 | 969 | $16 |
| Immunologic Analysis Technique on Serum (immunofixation)86334 | 863 | $16 |
| Protein Measurement, Body Fluid84166 | 164 | $16 |
| Immunologic Analysis Technique on Body Fluid, Other Fluids With Concentration86335 | 161 | $16 |
Typical Medicare-allowed amounts for these services range $16–$16 (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
- 2006-06-02
- Last updated
- 2015-10-20
Frequently asked questions
- What is Marilynn Fairfax's NPI number?
- Marilynn Fairfax's National Provider Identifier (NPI) is 1962440081, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marilynn Fairfax's specialty?
- Marilynn Fairfax is listed in the NPPES registry with a primary specialty of Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Marilynn Fairfax located?
- Marilynn Fairfax's practice location on file with NPPES is 4201 St Antoine, Detroit, MI 48201-2153.
- What is Marilynn Fairfax's phone number?
- The practice phone number listed in the NPPES registry for Marilynn Fairfax is (313) 745-4188.
- Does Marilynn Fairfax accept Medicare?
- Marilynn Fairfax is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marilynn Fairfax's NPI active?
- Yes — Marilynn Fairfax's NPI (1962440081) is active in the NPPES registry as of the last update on 2015-10-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.