Doctor profile · Federal record

Dr. Teresa Callahan, PA-C

Physician Assistant · Portsmouth, NH

  • NPI 1699715649
  • Accepts Medicare
  • 29 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
161 Corporate Dr
Portsmouth, NH 038016825
(603) 431-5154
fax (603) 430-5083
Mailing address
Po Box 9746
Portland, ME 041045040

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
October 1, 2020
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
New Hampshire #0280

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1699715649. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
755
Distinct HCPCS
10
Medicare allowed
$32,865
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 158 100 $79
36415 Insertion of needle into vein for collection of blood sample 115 65 $7
80053 Blood test, comprehensive group of blood chemicals 65 57 $10
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 58 58 $49
80061 Blood test, lipids (cholesterol and triglycerides) 57 50 $13
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 50 43 $8
99213 Established patient office or other outpatient visit, 20-29 minutes 42 39 $63
83036 Hemoglobin a1c level 34 22 $10
84443 Blood test, thyroid stimulating hormone (tsh) 31 22 $16
G0009 Administration of pneumococcal vaccine 30 30 $31

In context: peer comparison

Among 20 peers in Portsmouth Physician Assistant, average services per provider: 67. This provider delivers 11× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
699
Patients
209
Total drug cost
$12,686
Drug Type Claims Patients Total cost
Lisinopril Generic 83 30 $879
Losartan Potassium Generic 73 20 $759
Atorvastatin Calcium Generic 68 26 $1,180
Levothyroxine Sodium Generic 67 20 $902
Amlodipine Besylate Generic 52 18 $681
Lorazepam Generic 50 13 $259
Sertraline Hcl Generic 46 11 $605
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 41 15 $1,061
Hydrochlorothiazide Generic 41 17 $191
Pravastatin Sodium Generic 38 0 $460

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Teresa Callahan's medical specialty?
Dr. Teresa Callahan practices Physician Assistant in Portsmouth, NH.
Where does Dr. Teresa Callahan practice?
Dr. Teresa Callahan practices at 161 Corporate Dr, Portsmouth, NH 038016825. Office phone: 6034315154.
What is Dr. Teresa Callahan's NPI?
Dr. Teresa Callahan's National Provider Identifier (NPI) is 1699715649, issued by NPPES.
Does Dr. Teresa Callahan accept Medicare assignment?
Yes. Dr. Teresa Callahan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Teresa Callahan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Blood test, comprehensive group of blood chemicals (HCPCS 80053). Source: CMS Medicare Physician & Other Practitioners file.