Doctor profile · Federal record

Dr. Gary Sirken, DO

Nephrology Physician (CMS: Nephrology) · Internal Medicine Physician · Langhorne, PA

  • NPI 1164469334
  • Accepts Medicare
  • 29 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
825 Town Center Drive, Suite 152
Langhorne, PA 190473030
(215) 741-3510
fax (215) 741-3519
Mailing address
Po Box 538
Levittown, PA 190580538

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
December 13, 2024
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
207RN0300X — NUCC code
State license (1)
Pennsylvania #OS010180L
Medicaid
PA #0019054860003

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1164469334. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,562
Distinct HCPCS
6
Medicare allowed
$213,993
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 743 204 $80
99214 Established patient office or other outpatient visit, 30-39 minutes 405 232 $108
90960 Dialysis services, 4 or more physician visits per month (20 years or older) 177 59 $355
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 149 138 $176
90961 Dialysis services, 2-3 physician visits per month (20 years or older) 52 37 $300
99204 New patient office or other outpatient visit, 45-59 minutes 36 36 $173

In context: peer comparison

Among 6 peers in this city , average services per provider: 172. This provider delivers 9.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,138
Transactions
48
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals LP 12 $410.77
Bayer Healthcare Pharmaceuticals Inc. 8 $135.42
Amgen Inc. 5 $100.64
Vifor Pharma, Inc. 4 $79.37
Ardelyx, Inc. 3 $78.05
Lilly USA, LLC 2 $56.53
OPKO Pharmaceuticals, LLC 3 $55.33
Travere Therapeutics, Inc. 2 $50.72
Boehringer Ingelheim Pharmaceuticals, Inc. 2 $41.35
Fresenius USA Marketing, Inc. 2 $40.51
Novartis Pharmaceuticals Corporation 1 $20.38
CALLIDITAS THERAPEUTICS US INC. 1 $19.80
Novo Nordisk Inc 1 $18.70
Otsuka America Pharmaceutical, Inc. 1 $15.66
Otsuka Pharmaceutical Development & Commercialization, Inc. 1 $14.95

By nature of payment

Food and Beverage
$1,047
Education
$91

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,124
Patients
373
Total drug cost
$17,015
Drug Type Claims Patients Total cost
Allopurinol Generic 173 53 $2,413
Furosemide Generic 132 42 $1,035
Amlodipine Besylate Generic 130 46 $913
Torsemide Generic 90 27 $1,931
Losartan Potassium Generic 83 36 $1,510
Famotidine Generic 67 15 $1,660
Lisinopril Generic 61 29 $306
Carvedilol Generic 60 16 $784
Hydralazine Hcl Generic 60 25 $1,572
Calcitriol Generic 51 25 $1,614

Frequently asked questions

Auto-generated from federal data
What is Dr. Gary Sirken's medical specialty?
Dr. Gary Sirken practices Nephrology Physician in Langhorne, PA.
Where does Dr. Gary Sirken practice?
Dr. Gary Sirken practices at 825 Town Center Drive, Langhorne, PA 190473030. Office phone: 2157413510.
What is Dr. Gary Sirken's NPI?
Dr. Gary Sirken's National Provider Identifier (NPI) is 1164469334, issued by NPPES.
Does Dr. Gary Sirken accept Medicare assignment?
Yes. Dr. Gary Sirken accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gary Sirken commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99214); Dialysis services, 4 or more physician visits per month (20 years or older) (HCPCS 90960). Source: CMS Medicare Physician & Other Practitioners file.