Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1184127912 Individual Practitioner Male Practitioner

Dr. Gregory A Keifer , DO

General Practice • Big Pine Key, FL

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Gregory Keifer, DO is a certified General Practice practicing in Big Pine Key, FL. With approximately 9 years of clinical experience since graduating from Marian University College Of Osteopathic Medicine in 2017, Dr. Keifer delivers high-quality medical care to the local community at 29980 OVERSEAS HWY.

Dr. Keifer is affiliated with David F Grider Pa and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include established patient outpatient office visit, visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's, insertion of needle into vein for collection of blood sample. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

29980 Overseas Hwy

Big Pine Key, FL 330433362

Telephone 3058723321
Fax 3054229579
Associated Practice Facility / Clinic
🏢 David F Grider Pa Facility NPI 1033375530

Medicare Profile & Education

Medical School

Marian University College Of Osteopathic Medicine

Graduation Year

2017

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for General Practice in Big Pine Key, FL

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
9 Yrs Matches City Avg
City Avg: 9.0 Yrs
State Avg: 26.1 Yrs
Regional Practice Density
1 Specialists

Practicing in Big Pine Key, FL (2490 Statewide)

Telehealth Adoption Rate
100.0% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount
34.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Keifer (9 Years) 9 Yrs
Big Pine Key Specialty Average (9.0 Years) 9.0 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes
1,270 478 $149.82 $94.29
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
937 370 $25.00 $17.17
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
789 341 $177.21 $133.60
36415 Insertion of needle into vein for collection of blood sample
724 369 $10.00 $8.62
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg
197 63 $25.00 $6.94
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention
154 58 $34.87 $14.78
87804 Detection test by immunoassay with direct visual observation for influenza virus
105 51 $40.00 $15.94
81002 Urinalysis, manual test
100 73 $18.45 $3.38
93000 Routine ekg using at least 12 leads including interpretation and report
95 88 $50.00 $15.26
71046 X-ray of chest, 2 views
83 70 $75.90 $34.67
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
76 76 $172.37 $119.20
99457 Management using the results of remote vital sign monitoring per calendar month, first 20 minutes
71 29 $75.00 $50.33
87811 Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19)
45 41 $40.00 $38.41
69210 Removal of impacted ear wax
42 31 $73.33 $51.23
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
31 31 $220.97 $178.45
99454 Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days
24 11 $75.00 $47.85
99495 Transitional care management services for problem of at least moderate complexity
24 22 $275.00 $214.54
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and
23 21 $100.00 $55.66
99496 Transitional care management services for problem of high complexity
20 17 $305.00 $290.09
20610 Aspiration and/or injection of fluid from large joint
16 13 $168.75 $71.36
73560 X-ray of knee, 1-2 views
14 13 $75.00 $35.47
72100 X-ray of lower and sacral spine, 2-3 views
14 14 $100.00 $41.14
73502 X-ray of hip, 2-3 views
13 11 $75.00 $48.82
20553 Injection of trigger points, 3 or more muscles
13 11 $180.77 $59.78
11302 Shaving of skin growth of body, arms, or legs, 1.1-2.0 cm
13 12 $184.62 $142.63
82272 Stool analysis for blood
12 12 $20.00 $4.15

Medical Specialties & State Licenses

CMS Verified: 2025-01-28
General Practice Primary Specialty

NUCC Taxonomy Code: 208D00000X

State License FL OS15605

A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.

Additional State Medicaid & Healthcare Payer Identifiers

Commercial Insurance / Payer ID State Medical License
OS15605 (FL)

Hospital & Practice Group Affiliations

David F Grider Pa

29980 Overseas Hwy, Big Pine Key, FL 330433362

Phone: 3058723321

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

3 Associated Practitioners
Patricia Perry , ARNP

Nurse Practitioner - Family

NPI 1063608115

Advanced Registered Nurse Practitioner

Sarah Ladd , APRN

Nurse Practitioner - Family

NPI 1730014481

Advanced Practice Registered Nurse

Dr. David Grider , DO

Family Medicine

NPI 1811019045

Doctor of Osteopathic Medicine (D.O.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

11 Historical Events
📍
Updated Business Mailing Address August 21, 2024

Registered at 29980 OVERSEAS HWY, BIG PINE KEY, FL 330433362 (Tel: 3058723321)

📍
Updated Practice Location August 16, 2022

Registered at 29980 OVERSEAS HWY, BIG PINE KEY, FL 330433362 (Tel: 3058490463)

📍
Updated Practice Location April 09, 2019

Registered at 553 INDIES RD, RAMROD KEY, FL 330425408 (Tel: 3058490463)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 09, 2019

General Practice (License #OS15605 in FL)

📍
Updated Business Mailing Address September 17, 2018

Registered at PO BOX 602, KEY WEST, FL 330410602 (Tel: 3058490463)

NPI Profile Active March 18, 2018

NPI status registered as active in NPPES database

📍
Updated Practice Location March 18, 2018

Registered at 2500 SW 75TH AVE, MIAMI, FL 331552805 (Tel: 3052645252)

📍
Updated Business Mailing Address March 18, 2018

Registered at 553 INDIES RD, RAMROD KEY, FL 330425408 (Tel: 4193494293)

👤
Provider Name / Credentials Updated March 18, 2018

Recorded as GREGORY KEIFER, DO

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 18, 2018

Student in an Organized Health Care Education/Training Program (License #5375 in FL)

🟢
Initial NPI Registration & Enumeration March 18, 2018

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1184127912
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 18, 2018
Last Update: January 28, 2025
Sole Proprietor: Yes

Mailing Address

29980 Overseas Hwy

Big Pine Key, FL 330433362

Phone: 3058723321

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.