Doctor profile · Federal record

Dr. Michael Walker

Family Nurse Practitioner (CMS: Nurse Practitioner) · Family Nurse Practitioner · Student in an Organized Health Care Education/Training Program · Greenville, NC

  • NPI 1225615172
  • Accepts Medicare
  • 6 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
315 Greenville Blvd Se Ste 100
Greenville, NC 278585733
(252) 917-5621
Mailing address
2700 S 48Th St
Milwaukee, WI 532193217

Credentials & registration

NPPES · NUCC
NPI registered
March 2021 — 5 yrs on file
Profile last updated
August 17, 2023
Year of graduation
2020 — 6 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State licenses (2)
North Carolina #5018326 · Wisconsin #10979-33

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1225615172. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
238
Distinct HCPCS
6
Medicare allowed
$15,564
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 86 83 $51
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 43 42 $100
99203 New patient office or other outpatient visit, 30-44 minutes 31 31 $65
99203 New patient office or other outpatient visit, 30-44 minutes 27 27 $90
99214 Established patient office or other outpatient visit, 30-39 minutes 27 26 $75
87804 Detection test by immunoassay with direct visual observation for influenza virus 24 12 $16

In context: peer comparison

Among 36 peers in this city , average services per provider: 133. This provider delivers 1.8× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$125
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Teleflex LLC 1 $124.71

By nature of payment

Food and Beverage
$125

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
780
Patients
300
Total drug cost
$87,176
Drug Type Claims Patients Total cost
Omeprazole Generic 295 98 $3,956
Pantoprazole Sodium Generic 198 83 $3,792
Famotidine Generic 50 25 $890
Colestipol Hcl Generic 49 14 $4,817
Linzess (Linaclotide) Brand 32 16 $42,897
Prednisone Generic 19 19 $69
Ursodiol Generic 18 0 $7,473
Doxycycline Hyclate Generic 17 17 $283
Ondansetron Odt (Ondansetron) Brand 16 0 $203
Esomeprazole Magnesium Generic 15 0 $491

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Walker's medical specialty?
Dr. Michael Walker practices Family Nurse Practitioner in Greenville, NC.
Where does Dr. Michael Walker practice?
Dr. Michael Walker practices at 315 Greenville Blvd Se Ste 100, Greenville, NC 278585733. Office phone: 2529175621.
What is Dr. Michael Walker's NPI?
Dr. Michael Walker's National Provider Identifier (NPI) is 1225615172, issued by NPPES.
Does Dr. Michael Walker accept Medicare assignment?
Yes. Dr. Michael Walker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Walker commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.