Joseph Postma, M.D.
NPI 1962790170 · Internal Medicine Physician · Zeeland, MI
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Postma, M.D. is a Internal Medicine Physician provider in Zeeland, MI (NPI 1962790170).
Provider details
- NPI number
- 1962790170
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 4301099039 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
158 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 71 | $105 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 36 | $93 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 22 | $108 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 17 | $163 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 12 | $128 |
Typical Medicare-allowed amounts for these services range $93–$163 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tirzepatidebrand: Mounjaro | 81 | 15 |
| Topiramate | 58 | 23 |
| Metformin Hclbrand: Metformin Hcl Er | 39 | 13 |
| Naltrexone Hcl | 14 | — |
| Semaglutidebrand: Wegovy | 14 | — |
| Empagliflozinbrand: Jardiance | 12 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$832 across 38 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
Registry dates
- Enumerated
- 2011-07-21
- Last updated
- 2025-03-03
- Certified
- 2025-03-03
Frequently asked questions
- What is Joseph Postma's NPI number?
- Joseph Postma's National Provider Identifier (NPI) is 1962790170, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Postma's specialty?
- Joseph Postma is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Postma located?
- Joseph Postma's practice location on file with NPPES is 8333 Felch St, Zeeland, MI 49464-2608.
- What is Joseph Postma's phone number?
- The practice phone number listed in the NPPES registry for Joseph Postma is (616) 391-3139.
- Does Joseph Postma accept Medicare?
- Joseph Postma is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Postma's NPI active?
- Yes — Joseph Postma's NPI (1962790170) is active in the NPPES registry as of the last update on 2025-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.