Doctor profile · Federal record

Dr. Joan Nagelkirk, MD

Hospitalist Physician (CMS: Internal Medicine) · Internal Medicine Physician · Muskegon, MI

  • NPI 1912951211
  • Accepts Medicare
  • MIPS 84.9 / 100 · 2023
  • 44 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1500 E Sherman Blvd
Muskegon, MI 494441849
(231) 672-3883
fax (231) 672-3973
Mailing address
1560 E Sherman Blvd Ste 240
Muskegon, MI 494441854

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
April 23, 2022
Year of graduation
1982 — 44 yrs since
Specialty taxonomy
208M00000X — NUCC code
State license (1)
Michigan #4301064351
Medicaid
MI #4287244

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1912951211. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
191
Distinct HCPCS
5
Medicare allowed
$25,352
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 85 52 $117
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 36 29 $78
99291 Critical care, first 30-74 minutes 33 24 $211
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 25 25 $171
99239 Hospital discharge day management, more than 30 minutes 12 11 $112

In context: peer comparison

Among 15 peers in Muskegon Hospitalist Physician, average services per provider: 86. This provider delivers 2.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$99
Transactions
4
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 2 $64.25
Mylan Specialty L.P. 1 $20.00
Merck Sharp & Dohme LLC 1 $15.11

By nature of payment

Food and Beverage
$99

Frequently asked questions

Auto-generated from federal data
What is Dr. Joan Nagelkirk's medical specialty?
Dr. Joan Nagelkirk practices Hospitalist Physician in Muskegon, MI.
Where does Dr. Joan Nagelkirk practice?
Dr. Joan Nagelkirk practices at 1500 E Sherman Blvd, Muskegon, MI 494441849. Office phone: 2316723883.
What is Dr. Joan Nagelkirk's NPI?
Dr. Joan Nagelkirk's National Provider Identifier (NPI) is 1912951211, issued by NPPES.
Does Dr. Joan Nagelkirk accept Medicare assignment?
Yes. Dr. Joan Nagelkirk accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Joan Nagelkirk commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.