Doctor profile · Federal record

Dr. Daniel Callahan, PA-C

Physician Assistant · Student in an Organized Health Care Education/Training Program · Peachtree City, GA

  • NPI 1265998439
  • Accepts Medicare
  • 7 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
100 Genevieve CT Ste A
Peachtree City, GA 30269
(770) 486-1818
fax (855) 313-2098
Additional location
2500 Hospital Blvd Ste 490
Roswell, GA 300764975
(470) 321-7500
fax (678) 355-4474

Credentials & registration

NPPES · NUCC
NPI registered
February 2019 — 7 yrs on file
Profile last updated
September 25, 2019
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
363A00000X — NUCC code
State licenses (2)
Georgia #9243 · Georgia #PENDING

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1265998439. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
187
Distinct HCPCS
4
Medicare allowed
$17,250
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 92 50 $109
99213 Established patient office or other outpatient visit, 20-29 minutes 37 32 $77
99441 Telephone medical discussion with physician, 5-10 minutes 33 26 $48
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 25 25 $111

In context: peer comparison

Among 5 peers in this city , average services per provider: 82. This provider delivers 2.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,489
Transactions
88
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Lilly USA, LLC 18 $307.95
ABBVIE INC. 22 $246.34
AstraZeneca Pharmaceuticals LP 10 $201.79
Novo Nordisk Inc 8 $137.39
Otsuka America Pharmaceutical, Inc. 6 $128.42
Lundbeck LLC 4 $77.12
PFIZER INC. 4 $66.78
Salix Pharmaceuticals, a division of Bausch Health US, LLC 3 $60.03
GlaxoSmithKline, LLC. 3 $54.06
SANOFI-AVENTIS U.S. LLC 3 $46.36
IRONSHORE PHARMACEUTICALS INC. 2 $40.25
Axsome Therapeutics, Inc. 1 $31.60
Amgen Inc. 2 $27.93
Astellas Pharma US Inc 1 $21.56
Janssen Pharmaceuticals, Inc 1 $21.45

By nature of payment

Food and Beverage
$1,489

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
730
Patients
227
Total drug cost
$52,063
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 121 38 $1,167
Amlodipine Besylate Generic 98 39 $494
Omeprazole Generic 68 19 $530
Rosuvastatin Calcium Generic 68 27 $1,115
Levothyroxine Sodium Generic 43 14 $691
Ozempic (Semaglutide) Brand 42 0 $43,806
Lisinopril Generic 39 15 $269
Prednisone Generic 37 24 $68
Fluticasone Propionate Generic 35 15 $535
Losartan Potassium Generic 32 11 $365

Frequently asked questions

Auto-generated from federal data
What is Dr. Daniel Callahan's medical specialty?
Dr. Daniel Callahan practices Physician Assistant in Peachtree City, GA.
Where does Dr. Daniel Callahan practice?
Dr. Daniel Callahan practices at 100 Genevieve CT Ste A, Peachtree City, GA 30269. Office phone: 7704861818.
What is Dr. Daniel Callahan's NPI?
Dr. Daniel Callahan's National Provider Identifier (NPI) is 1265998439, issued by NPPES.
Does Dr. Daniel Callahan accept Medicare assignment?
Yes. Dr. Daniel Callahan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Daniel Callahan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Telephone medical discussion with physician (HCPCS 99441). Source: CMS Medicare Physician & Other Practitioners file.