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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

STEVEN JAY WOLFSON MD
NPI 1629062658
Internal Medicine - Gastroenterology in Williamsport, PA

Active since September 06, 2005
1201 GRAMPIAN BLVD, STE 2F, WILLIAMSPORT, PA 17701(570) 323-4010(570) 323-4630 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Steven Jay Wolfson Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

STEVEN JAY WOLFSON MD (NPI 1629062658) is an individual gastroenterology provider in Williamsport, Pennsylvania, licensed in Pennsylvania (MD040912E) and active in the NPI registry since September 2005.

NPPES Registry Identity

NPI1629062658
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameSTEVEN JAY WOLFSONCredential: MD
Location Address1201 GRAMPIAN BLVD, STE 2FWilliamsport, PA 17701-1900
Mailing Address1201 Grampian Blvd, Ste 2fWilliamsport, PA 17701-1900 · (570) 323-4010 · Fax (570) 323-4630
Phone(570) 323-4010
Fax(570) 323-4630
Sole ProprietorNo
Enumeration DateSeptember 6, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1629062658 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in PA · MD040912E
Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

1201 GRAMPIAN BLVD, Williamsport, PA 17701
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Other Identifiers 3

Medicaid0011196570003PA
Other78200PA · Bc Bs
Other080132PA · Fph

Other Providers at the Same Location NPPES 17

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JOANNE MARIE LALLI MD
Internal Medicine
1201 GRAMPIAN BLVD, STE 2D
WILLIAMSPORT, PA 17701
Lycoming County (570) 326-2595
HELEN O HISERMAN PA-C
Physician Assistant
1201 GRAMPIAN BLVD, STE 3A
WILLIAMSPORT, PA 17701
Lycoming County (570) 322-6450
SUSQUEHANNA VENTURES, INC.
Durable Medical Equipment & Medical Supplies
1201 GRAMPIAN BLVD, DME SUITE
WILLIAMSPORT, PA 17701
Lycoming County (570) 320-7660
MR. NICHOLAS GABRIEL LPC
Counselor (Professional)
1201 GRAMPIAN BLVD, SUITE 2 G
WILLIAMSPORT, PA 17701
Lycoming County (570) 322-4220
SUSQUEHANNA PHYSICIAN SERVICES
Plastic Surgery
1201 GRAMPIAN BLVD, SUITE 1B
WILLIAMSPORT, PA 17701
Lycoming County (570) 320-7570
DR. MARGARET M CRABTREE DDS
Dentist (General Practice)
1201 GRAMPIAN BLVD, 3-G
WILLIAMSPORT, PA 17701
Lycoming County (570) 326-8530
DURRIYA S ESAA
Ophthalmology
1201 GRAMPIAN BLVD, SUITE 2C
WILLIAMSPORT, PA 17701
Lycoming County (570) 322-9948
SUSQUEHANNA PHYSICIAN SERVICES
Nurse Practitioner
1201 GRAMPIAN BLVD, SUITE 2E
WILLIAMSPORT, PA 17701
Lycoming County (570) 326-8502

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Steven Wolfson's NPI number?

The NPI number for Steven Wolfson is 1629062658. It was assigned to this individual provider in the NPPES registry on September 6, 2005.

Where is Steven Wolfson located?

Steven Wolfson practices at 1201 Grampian Blvd Ste 2F, Williamsport, PA 17701. The listed phone number is (570) 323-4010.

What is Steven Wolfson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

When was this NPI record last updated?

The NPPES record for Steven Wolfson was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.