Jacob Hamaker, DO
NPI 1194420422 · Student in an Organized Health Care Education/Training Program · Indianapolis, IN
Enrolled with Medicare as Order and Referring Only - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jacob Hamaker, DO is a Student in an Organized Health Care Education/Training Program provider in Indianapolis, IN (NPI 1194420422).
Provider details
- NPI number
- 1194420422
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
- Student in an Organized Health Care Education/Training ProgramPrimary390200000XLicense 11023127A (IN)
Student, Health Care
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
83% 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 · 3 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 24 |
| Amlodipine Besylate | 17 |
| Gabapentin | 17 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-04-04
- Last updated
- 2023-06-09
- Certified
- 2023-06-09
Frequently asked questions
- What is Jacob Hamaker's NPI number?
- Jacob Hamaker's National Provider Identifier (NPI) is 1194420422, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jacob Hamaker's specialty?
- Jacob Hamaker is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Jacob Hamaker located?
- Jacob Hamaker's practice location on file with NPPES is 5230 E Stop 11 Rd Ste 250, Indianapolis, IN 46237-6399.
- What is Jacob Hamaker's phone number?
- The practice phone number listed in the NPPES registry for Jacob Hamaker is (317) 528-8921.
- Does Jacob Hamaker accept Medicare?
- Jacob Hamaker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jacob Hamaker's NPI active?
- Yes — Jacob Hamaker's NPI (1194420422) is active in the NPPES registry as of the last update on 2023-06-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.