Doctor profile · Federal record

Dr. Michael Greenfield, MD

Internal Medicine Physician (CMS: Internal Medicine) · Pediatrics Physician · Overland Park, KS

  • NPI 1336191287
  • Accepts Medicare
  • 32 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
7840 W 165Th St Ste 210
Overland Park, KS 66223
(913) 373-2230
fax (913) 373-0999

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
June 27, 2018
Year of graduation
1994 — 32 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Kansas #0426184
Medicaid
KS #100316520A

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1336191287. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,194
Distinct HCPCS
10
Medicare allowed
$64,994
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 364 214 $74
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 163 163 $47
G0442 Annual alcohol misuse screening, 5 to 15 minutes 147 147 $17
G0444 Annual depression screening, 5 to 15 minutes 145 145 $17
99213 Established patient office or other outpatient visit, 20-29 minutes 63 49 $70
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 44 18 $74
G0008 Administration of influenza virus vaccine 42 41 $29
90662 Influenza vaccine split virus, preservative free 41 40 $72
83036 Hemoglobin a1c level 28 26 $10
69210 Removal of impacted ear wax 18 18 $44

In context: peer comparison

Among 35 peers in Overland Park Internal Medicine Physician, average services per provider: 169. This provider delivers 7.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$26
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Takeda Pharmaceuticals U.S.A., INC. 1 $25.65

By nature of payment

Education
$26

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,388
Patients
606
Total drug cost
$27,924
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 449 122 $4,737
Levothyroxine Sodium Generic 343 75 $3,670
Lisinopril Generic 198 55 $2,034
Rosuvastatin Calcium Generic 171 39 $3,562
Losartan Potassium Generic 163 41 $1,987
Amlodipine Besylate Generic 159 42 $1,156
Meloxicam Generic 130 36 $1,056
Pantoprazole Sodium Generic 119 34 $2,263
Metformin Hcl Generic 110 30 $980
Tamsulosin Hcl Generic 99 25 $2,063

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Greenfield's medical specialty?
Dr. Michael Greenfield practices Internal Medicine Physician in Overland Park, KS.
Where does Dr. Michael Greenfield practice?
Dr. Michael Greenfield practices at 7840 W 165Th St Ste 210, Overland Park, KS 66223. Office phone: 9133732230.
What is Dr. Michael Greenfield's NPI?
Dr. Michael Greenfield's National Provider Identifier (NPI) is 1336191287, issued by NPPES.
Does Dr. Michael Greenfield accept Medicare assignment?
Yes. Dr. Michael Greenfield accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Greenfield commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Annual alcohol misuse screening, 5 to 15 minutes (HCPCS G0442). Source: CMS Medicare Physician & Other Practitioners file.