Nathan Pomeroy, MD, MPH
NPI 1043338650 · Endocrinology, Diabetes & Metabolism Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathan Pomeroy, MD, MPH is a Endocrinology, Diabetes & Metabolism Physician provider in Grand Rapids, MI (NPI 1043338650).
Provider details
- NPI number
- 1043338650
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MPH
- Sex
- Male
- Sole proprietor
- No
- License
- 4301081774 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
214 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 88 | $66 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 79 | $97 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 33 | $132 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 14 | $35 |
Typical Medicare-allowed amounts for these services range $35–$132 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 707 | 193 |
| Methimazole | 190 | 53 |
| Tirzepatidebrand: Mounjaro | 176 | 42 |
| Hydrocortisone | 136 | 43 |
| Testosterone Cypionate | 123 | 31 |
| Empagliflozinbrand: Jardiance | 91 | 26 |
| Insulin Glargine,hum.rec.anlog |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$443 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
Registry dates
- Enumerated
- 2007-03-26
- Last updated
- 2021-02-18
- Certified
- 2021-02-18
Frequently asked questions
- What is Nathan Pomeroy's NPI number?
- Nathan Pomeroy's National Provider Identifier (NPI) is 1043338650, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Pomeroy's specialty?
- Nathan Pomeroy is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Nathan Pomeroy located?
- Nathan Pomeroy's practice location on file with NPPES is 221 Michigan St Ne, Grand Rapids, MI 49503-2543.
- What is Nathan Pomeroy's phone number?
- The practice phone number listed in the NPPES registry for Nathan Pomeroy is (616) 284-8950.
- Does Nathan Pomeroy accept Medicare?
- Nathan Pomeroy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathan Pomeroy's NPI active?
- Yes — Nathan Pomeroy's NPI (1043338650) is active in the NPPES registry as of the last update on 2021-02-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.