Doctor profile · Federal record

Dr. Nathan Pomeroy, MD, MPH

Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Internal Medicine Physician · Grand Rapids, MI

  • NPI 1043338650
  • Accepts Medicare
  • MIPS 93.8 / 100 · 2023
  • 23 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
221 Michigan St Ne, Suite 200
Grand Rapids, MI 495032543
(616) 284-8950
Mailing address
100 Michigan St Ne, Mc 845
Grand Rapids, MI 495032560

Credentials & registration

NPPES · NUCC
NPI registered
March 2007 — 19 yrs on file
Profile last updated
February 18, 2021
Year of graduation
2003 — 23 yrs since
Specialty taxonomy
207RE0101X — NUCC code
State license (1)
Michigan #4301081774

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1043338650. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
371
Distinct HCPCS
7
Medicare allowed
$27,690
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 109 93 $87
99214 Established patient office or other outpatient visit, 30-39 minutes 69 59 $121
82947 Blood glucose (sugar) level 59 45 $4
83036 Hemoglobin a1c level 59 45 $9
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 44 43 $127
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 19 15 $78
99204 New patient office or other outpatient visit, 45-59 minutes 12 12 $162

In context: peer comparison

Among 5 peers in this city , average services per provider: 37. This provider delivers 10× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$443
Transactions
5
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Boehringer Ingelheim Pharmaceuticals, Inc. 3 $235.45
Dexcom, Inc. 1 $128.05
Tandem Diabetes Care, Inc. 1 $79.52

By nature of payment

Food and Beverage
$443

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,995
Patients
556
Total drug cost
$542,131
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 735 214 $18,508
Methimazole Generic 219 52 $3,130
Hydrocortisone Generic 186 50 $12,968
Mounjaro (Tirzepatide) Brand 160 36 $200,308
Testosterone Cypionate Generic 127 29 $5,626
Trulicity (Dulaglutide) Brand 82 23 $108,618
Alendronate Sodium Generic 73 26 $1,158
Metformin Hcl Generic 66 25 $1,056
Jardiance (Empagliflozin) Brand 65 23 $66,066
Lantus Solostar (Insulin Glargine,hum.Rec.Anlog) Brand 61 25 $44,565

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Nathan Pomeroy's medical specialty?
Dr. Nathan Pomeroy practices Endocrinology, Diabetes & Metabolism Physician in Grand Rapids, MI.
Where does Dr. Nathan Pomeroy practice?
Dr. Nathan Pomeroy practices at 221 Michigan St Ne, Grand Rapids, MI 495032543. Office phone: 6162848950.
What is Dr. Nathan Pomeroy's NPI?
Dr. Nathan Pomeroy's National Provider Identifier (NPI) is 1043338650, issued by NPPES.
Does Dr. Nathan Pomeroy accept Medicare assignment?
Yes. Dr. Nathan Pomeroy accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nathan Pomeroy commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Blood glucose (sugar) level (HCPCS 82947). Source: CMS Medicare Physician & Other Practitioners file.