Fred Groos, MD
NPI 1467456400 · Family Medicine Physician · Marquette, MI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Fred Groos, MD is a Family Medicine Physician provider in Marquette, MI (NPI 1467456400).
Provider details
- NPI number
- 1467456400
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 28880-020 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
21 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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) |
|---|---|
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 47 |
| Gabapentin | 39 |
| Bupropion Hclbrand: Bupropion Xl | 22 |
| Morphine Sulfate | 16 |
| Buprenorphine Hcl | 14 |
| Methylphenidate Hcl | 14 |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-08
- Last updated
- 2021-04-14
- Certified
- 2021-04-14
Frequently asked questions
- What is Fred Groos's NPI number?
- Fred Groos's National Provider Identifier (NPI) is 1467456400, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Fred Groos's specialty?
- Fred Groos is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Fred Groos located?
- Fred Groos's practice location on file with NPPES is 1414 W Fair Ave Ste 242, Marquette, MI 49855-5406.
- What is Fred Groos's phone number?
- The practice phone number listed in the NPPES registry for Fred Groos is (906) 449-2900.
- Does Fred Groos accept Medicare?
- Fred Groos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Fred Groos's NPI active?
- Yes — Fred Groos's NPI (1467456400) is active in the NPPES registry as of the last update on 2021-04-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.