Jacob Demaster, D.O.
NPI 1215373147 · Family Medicine Physician · Sheboygan, WI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jacob Demaster, D.O. is a Family Medicine Physician provider in Sheboygan, WI (NPI 1215373147).
Provider details
- NPI number
- 1215373147
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 5101020370 (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
13 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
915 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 406 | $120 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 208 | $122 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 81 | $9 |
| Administration of Influenza Virus VaccineG0008 | 74 | $30 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 44 | $85 |
| Annual Wellness Visit; Includes a Personalized Prevention Plan of Service (pps), Initial VisitG0438 | 27 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 135 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 781 | 208 |
| Omeprazole | 428 | 120 |
| Levothyroxine Sodium | 344 | 85 |
| Losartan Potassium | 327 | 84 |
| Hydrochlorothiazide | 277 | 71 |
| Pantoprazole Sodium | 215 | 60 |
| Rosuvastatin Calcium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-05-19
- Last updated
- 2021-11-30
- Certified
- 2021-11-30
Frequently asked questions
- What is Jacob Demaster's NPI number?
- Jacob Demaster's National Provider Identifier (NPI) is 1215373147, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jacob Demaster's specialty?
- Jacob Demaster is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jacob Demaster located?
- Jacob Demaster's practice location on file with NPPES is 1813 Ashland Ave, Sheboygan, WI 53081-6125.
- What is Jacob Demaster's phone number?
- The practice phone number listed in the NPPES registry for Jacob Demaster is (920) 458-4010.
- Does Jacob Demaster accept Medicare?
- Jacob Demaster is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jacob Demaster's NPI active?
- Yes — Jacob Demaster's NPI (1215373147) is active in the NPPES registry as of the last update on 2021-11-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.