Doctor profile · Federal record

Dr. Jonathan Fenkel, MD

Gastroenterology Physician (CMS: Gastroenterology) · Gastroenterology Physician · Philadelphia, PA

  • NPI 1811031222
  • Accepts Medicare
  • 22 yrs in practice
  • Licensed in 2 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1101 Chestnut St
Philadelphia, PA 191073612
(215) 955-8900
fax (215) 955-5245
Mailing address
132 S 10Th St, Suite 480, Main Building
Philadelphia, PA 191075244

Credentials & registration

NPPES · NUCC
NPI registered
February 2007 — 19 yrs on file
Profile last updated
October 28, 2024
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State licenses (2)
Pennsylvania #MD443298 · New Jersey #25MA08540400

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1811031222. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
591
Distinct HCPCS
10
Medicare allowed
$61,426
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 153 118 $100
99214 Established patient office or other outpatient visit, 30-39 minutes 107 92 $120
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 91 34 $78
99213 Established patient office or other outpatient visit, 20-29 minutes 39 36 $68
99213 Established patient office or other outpatient visit, 20-29 minutes 34 32 $76
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 26 15 $122
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 25 24 $134
91200 Measurement of liver stiffness 20 20 $11
99204 New patient office or other outpatient visit, 45-59 minutes 20 20 $138
99215 Established patient office or other outpatient visit, 40-54 minutes 20 18 $184

In context: peer comparison

Among 80 peers in Philadelphia Gastroenterology Physician, average services per provider: 80. This provider delivers 7.4× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$23,554
Transactions
15
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
E.R. Squibb & Sons, L.L.C. 9 $13,465.07
Gilead Sciences, INC. 2 $6,334.84
Madrigal Pharmaceuticals 4 $3,754.28

By nature of payment

Consulting Fee
$12,130
Education
$6,098
Compensation for Services Other Than Consulting, Including Serving As Faculty or As A Speaker at A Venue Other Than A Continuing Education Program
$3,525
Travel and Lodging
$1,143
Food and Beverage
$658

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,527
Patients
300
Total drug cost
$1,182,203
Drug Type Claims Patients Total cost
Xifaxan (Rifaximin) Brand 238 29 $800,514
Tacrolimus Generic 219 45 $35,664
Ursodiol Generic 197 52 $48,610
Vemlidy (Tenofovir Alafenamide) Brand 163 22 $257,537
Pantoprazole Sodium Generic 154 33 $1,616
Entecavir Generic 83 20 $19,237
Spironolactone Generic 78 23 $1,284
Furosemide Generic 71 21 $390
Gabapentin Generic 59 13 $667
Cyclosporine Modified (Cyclosporine, Modified) Brand 54 0 $10,585

Frequently asked questions

Auto-generated from federal data
What is Dr. Jonathan Fenkel's medical specialty?
Dr. Jonathan Fenkel practices Gastroenterology Physician in Philadelphia, PA.
Where does Dr. Jonathan Fenkel practice?
Dr. Jonathan Fenkel practices at 1101 Chestnut St, Philadelphia, PA 191073612. Office phone: 2159558900.
What is Dr. Jonathan Fenkel's NPI?
Dr. Jonathan Fenkel's National Provider Identifier (NPI) is 1811031222, issued by NPPES.
Does Dr. Jonathan Fenkel accept Medicare assignment?
Yes. Dr. Jonathan Fenkel accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jonathan Fenkel 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 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.