Marcus Koss, M.D.
NPI 1750300679 · Family Medicine Physician · Saint Clair Shores, MI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marcus Koss, M.D. is a Family Medicine Physician provider in Saint Clair Shores, MI (NPI 1750300679).
Provider details
- NPI number
- 1750300679
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 4301074604 (MI)
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
19 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
127 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 57 | $91 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 34 | $4 |
| Urinalysis, Manual Test81002 | 21 | $3 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 15 | $130 |
Typical Medicare-allowed amounts for these services range $3–$130 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 85 | 29 |
| Lisinopril | 66 | 22 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 62 | 23 |
| Amlodipine Besylate | 54 | 21 |
| Levothyroxine Sodium | 43 | 11 |
| Metformin Hcl | 39 | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-19
- Last updated
- 2022-04-14
- Certified
- 2022-04-14
Frequently asked questions
- What is Marcus Koss's NPI number?
- Marcus Koss's National Provider Identifier (NPI) is 1750300679, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcus Koss's specialty?
- Marcus Koss is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marcus Koss located?
- Marcus Koss's practice location on file with NPPES is 21603 E 11 Mile Rd, Saint Clair Shores, MI 48081-1636.
- What is Marcus Koss's phone number?
- The practice phone number listed in the NPPES registry for Marcus Koss is (586) 280-2100.
- Does Marcus Koss accept Medicare?
- Marcus Koss is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marcus Koss's NPI active?
- Yes — Marcus Koss's NPI (1750300679) is active in the NPPES registry as of the last update on 2022-04-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.