Michael Grossman, MD
NPI 1265594758 · Family Medicine Physician · Negaunee, MI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Grossman, MD is a Family Medicine Physician provider in Negaunee, MI (NPI 1265594758).
Provider details
- NPI number
- 1265594758
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301039616 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 140 | 16 |
| Gabapentin | 79 | 15 |
| Sertraline Hcl | 22 | — |
| Lorazepam | 21 | — |
| Quetiapine Fumarate | 21 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 15 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$716 across 15 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 901 Lakeshore DriveIshpeming, MI 49849Phone: (906) 485-2687Fax: (906) 485-2730
- 1009 W Ridge St Ste CMarquette, MI 49855-3997Phone: (906) 228-6545Fax: (906) 228-8236
Registry dates
- Enumerated
- 2006-12-14
- Last updated
- 2022-02-07
- Certified
- 2022-02-07
Frequently asked questions
- What is Michael Grossman's NPI number?
- Michael Grossman's National Provider Identifier (NPI) is 1265594758, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Grossman's specialty?
- Michael Grossman is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Grossman located?
- Michael Grossman's practice location on file with NPPES is Great Lakes Recovery Centers, Inc., Negaunee, MI 49866.
- What is Michael Grossman's phone number?
- The practice phone number listed in the NPPES registry for Michael Grossman is (906) 228-4692.
- Does Michael Grossman accept Medicare?
- Michael Grossman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Grossman's NPI active?
- Yes — Michael Grossman's NPI (1265594758) is active in the NPPES registry as of the last update on 2022-02-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.