Quick answers
- Does Marilynn R. Fairfax accept Medicare assignment?
- Yes. Medicare's clinician data says Marilynn R. Fairfax accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Marilynn R. Fairfax see?
- In 2024, CMS data shows 503 Original Medicare patients and 2,157 services for Marilynn R. Fairfax. This counts Original Medicare only and measures volume, not quality.
- What is Marilynn R. Fairfax's NPI number?
- 1962440081. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Marilynn R. Fairfax, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 503 |
|---|---|
| Services billed to Medicare | 2,157 |
| Different services or procedures | 4 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Protein measurement, serum (84165)969 services
- Immunologic analysis technique on serum (immunofixation) (86334)863 services
- Protein measurement, body fluid (84166)164 services
- Immunologic analysis technique on body fluid, other fluids with concentration (86335)161 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol71%
- Arthritis53%
- Chronic kidney disease46%
- Ischemic heart disease39%
- Heart failure38%
Hospitals where Marilynn R. Fairfax works
Medicare's Facility Affiliation Data lists Marilynn R. Fairfax at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Detroit Receiving HospitalDetroit, MI · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 230273
- Harper University HospitalDetroit, MI · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 230104
- Huron Valley-Sinai HospitalCommerce Township, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230277
- Karmanos Cancer CenterDetroit, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 230297
- Sinai-Grace HospitalDetroit, MI · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 230024
Practice locations
Addresses where Marilynn R. Fairfax is enrolled with Medicare (CMS data updated October 2, 2026).
- 4201 Saint Antoine StDetroit, MI 48201 (313) 745‑3000
Group practices
Medicare enrollment lists Marilynn R. Fairfax as a member of this group (CMS data updated October 2, 2026).
- University Physician Group403 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Detroit
Clinicians with the same Medicare primary specialty in Detroit, MI — not a recommendation.
Other clinicians in University Physician Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical School At San Antonio |
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1962440081 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians