Doctor profile · Federal record

Dr. Gregory Keifer, DO

General Practice Physician (CMS: General Practice) · Big Pine Key, FL

  • NPI 1184127912
  • Accepts Medicare
  • MIPS 6.0 / 100 · 2023
  • 9 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
29980 Overseas Hwy
Big Pine Key, FL 330433362
(305) 872-3321
fax (305) 422-9579

Credentials & registration

NPPES · NUCC
NPI registered
March 2018 — 8 yrs on file
Profile last updated
January 28, 2025
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
208D00000X — NUCC code
State license (1)
Florida #OS15605

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1184127912. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,846
Distinct HCPCS
10
Medicare allowed
$203,657
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 752 380 $95
99214 Established patient office or other outpatient visit, 30-39 minutes 630 325 $134
36415 Insertion of needle into vein for collection of blood sample 419 282 $8
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg 186 54 $7
99457 Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 139 34 $51
96372 Injection of drug or substance under skin or into muscle 97 41 $15
81002 Urinalysis, manual test 83 66 $3
99454 Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days 68 21 $51
G0008 Administration of influenza virus vaccine 58 58 $33
90662 Influenza vaccine split virus, preservative free 56 56 $72

In context: peer comparison

Among 1 peers in Big Pine Key General Practice Physician, average services per provider: 129. This provider delivers 22× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$37
Transactions
2
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 2 $36.79

By nature of payment

Food and Beverage
$37

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
978
Patients
356
Total drug cost
$20,422
Drug Type Claims Patients Total cost
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 138 34 $3,533
Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) Brand 131 25 $5,712
Atorvastatin Calcium Generic 88 38 $1,193
Lisinopril Generic 76 31 $865
Amlodipine Besylate Generic 71 26 $721
Zolpidem Tartrate Generic 61 20 $634
Levothyroxine Sodium Generic 57 21 $710
Rosuvastatin Calcium Generic 51 20 $1,103
Gabapentin Generic 48 18 $1,170
Alprazolam Generic 47 15 $407

Frequently asked questions

Auto-generated from federal data
What is Dr. Gregory Keifer's medical specialty?
Dr. Gregory Keifer practices General Practice Physician in Big Pine Key, FL.
Where does Dr. Gregory Keifer practice?
Dr. Gregory Keifer practices at 29980 Overseas Hwy, Big Pine Key, FL 330433362. Office phone: 3058723321.
What is Dr. Gregory Keifer's NPI?
Dr. Gregory Keifer's National Provider Identifier (NPI) is 1184127912, issued by NPPES.
Does Dr. Gregory Keifer accept Medicare assignment?
Yes. Dr. Gregory Keifer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Keifer 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); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.