Frank Sprague, MD
NPI 1134120108 · Internal Medicine Physician · Muskegon, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frank Sprague, MD is a Internal Medicine Physician provider in Muskegon, MI (NPI 1134120108).
Provider details
- NPI number
- 1134120108
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301043372 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 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 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 118 | 29 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 73 | — |
| Gabapentin | 62 | — |
| Omeprazole | 48 | 11 |
| Amlodipine Besylate | 46 | 14 |
| Metformin Hcl | 38 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$117 across 5 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)
- 1675 Leahy St Ste 103Muskegon, MI 49442-5538Phone: (231) 737-1335
- 2700 Baker St Fl 3Muskegon, MI 49444-2157Phone: (231) 737-1335
Registry dates
- Enumerated
- 2005-08-02
- Last updated
- 2022-01-03
- Certified
- 2022-01-03
Frequently asked questions
- What is Frank Sprague's NPI number?
- Frank Sprague's National Provider Identifier (NPI) is 1134120108, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frank Sprague's specialty?
- Frank Sprague is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Frank Sprague located?
- Frank Sprague's practice location on file with NPPES is 376 E Apple Ave, Muskegon, MI 49442-3466.
- What is Frank Sprague's phone number?
- The practice phone number listed in the NPPES registry for Frank Sprague is (231) 724-1335.
- Does Frank Sprague accept Medicare?
- Frank Sprague is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Frank Sprague's NPI active?
- Yes — Frank Sprague's NPI (1134120108) is active in the NPPES registry as of the last update on 2022-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.