Doctor profile · Federal record

Dr. Margaret Hallahan, D.O.

Hospice and Palliative Medicine (Internal Medicine) Physician (CMS: Internal Medicine) · Internal Medicine Physician · Huntingdon, PA

  • NPI 1972818540
  • Accepts Medicare
  • 16 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1225 Warm Springs Ave
Huntingdon, PA 166522350
(814) 643-2290

Credentials & registration

NPPES · NUCC
NPI registered
August 2010 — 16 yrs on file
Profile last updated
May 7, 2018
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207RH0002X — NUCC code
State license (1)
Pennsylvania #OS016316
Medicaid
PA #102826058

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1972818540. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
981
Distinct HCPCS
8
Medicare allowed
$82,009
HCPCS Description Services Patients Avg allowed
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes 312 111 $71
99307 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes 256 101 $38
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 256 93 $102
99306 Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 50 43 $175
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 50 35 $147
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes 24 24 $128
99316 Nursing facility discharge management, more than 30 minutes 20 19 $124
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 13 11 $167

In context: peer comparison

Among 1 peers in this city , average services per provider: 122. This provider delivers 8.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$34
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Inari Medical, Inc. 1 $34.29

By nature of payment

Food and Beverage
$34

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
5,010
Patients
712
Total drug cost
$263,543
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 582 86 $16,685
Gabapentin Generic 466 66 $8,654
Levothyroxine Sodium Generic 411 44 $6,098
Furosemide Generic 384 57 $3,629
Lantus Solostar (Insulin Glargine,hum.Rec.Anlog) Brand 383 26 $62,887
Sertraline Hcl Generic 366 37 $7,321
Metoprolol Succinate Generic 353 47 $6,034
Omeprazole Generic 323 51 $9,278
Potassium Chloride Generic 285 42 $9,365
Pantoprazole Sodium Generic 276 45 $8,107

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Margaret Hallahan's medical specialty?
Dr. Margaret Hallahan practices Hospice and Palliative Medicine (Internal Medicine) Physician in Huntingdon, PA.
Where does Dr. Margaret Hallahan practice?
Dr. Margaret Hallahan practices at 1225 Warm Springs Ave, Huntingdon, PA 166522350. Office phone: 8146432290.
What is Dr. Margaret Hallahan's NPI?
Dr. Margaret Hallahan's National Provider Identifier (NPI) is 1972818540, issued by NPPES.
Does Dr. Margaret Hallahan accept Medicare assignment?
Yes. Dr. Margaret Hallahan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margaret Hallahan commonly perform?
Top Medicare-reported procedures in 2023: Subsequent nursing facility care with straightforward level of medical decision making (HCPCS 99308); Subsequent nursing facility care with straightforward level of medical decision making (HCPCS 99307); Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309). Source: CMS Medicare Physician & Other Practitioners file.