Doctor profile · Federal record

Dr. MARISSA AMBRON, D.O.

Internal Medicine Physician (CMS: INTERNAL MEDICINE) · Internal Medicine Physician · Hospitalist Physician · WILLIAMSPORT, PA

  • NPI 1518113570
  • Accepts Medicare
  • MIPS 90.3 / 100 · 2023
  • 18 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
700 HIGH STREET
WILLIAMSPORT, PA 177013198
(570) 321-2850
fax (570) 321-2851
Mailing address
1201 GRAMPIAN BLVD, SUITE 1K
WILLIAMSPORT, PA 177011900

Credentials & registration

NPPES · NUCC
NPI registered
August 2008 — 18 yrs on file
Profile last updated
January 11, 2012
Year of graduation
2008 — 18 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
Pennsylvania #OS014928 · Pennsylvania #0012720

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1518113570. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
446
Distinct HCPCS
3
Medicare allowed
$43,229
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 309 136 $78
99239 Hospital discharge day management, more than 30 minutes 70 68 $112
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 67 65 $170

In context: peer comparison

Among 5 peers in this city , average services per provider: 148. This provider delivers 3.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$113
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Boehringer Ingelheim Pharmaceuticals, Inc. 1 $113.40

By nature of payment

Food and Beverage
$113

Hospital affiliations

CMS Hospital Compare