NPI Portal NPI Lookup & Verification

Gregory Szych, DO

Gregory Szych is a Gastroenterology Physician provider (Internal Medicine) practicing in Jackson, TN, registered in the NPPES registry with NPI 1841268521 since 2006. The credential DO stands for Doctor of Osteopathic Medicine.

✓ Active NPI ✓ Valid NPI checksum

NPI 1841268521
Entity type Individual (Type 1)
Name Gregory Szych
Credential DO
Sex Male
Practice address 700 W FOREST AVE, STE 300, Jackson, TN, 38301
Phone 7314220305
Fax 7314220357
Enumeration date 2006-03-09
Last updated in NPPES 2025-05-19

Taxonomy & licenses

Taxonomy code Specialty Primary License State
207RG0100X Gastroenterology Physician Secondary 21337 MS
207RG0100X Gastroenterology Physician Secondary 036151389 IL
207RG0100X Gastroenterology Physician Secondary DO1484 TN
207RG0100X Gastroenterology Physician Secondary 95095 GA
207RG0100X Gastroenterology Physician Secondary 04449 KY
207RG0100X Gastroenterology Physician Secondary 0102204735 VA
207RG0100X Gastroenterology Physician Secondary DR.0043812 CO
207RG0100X Gastroenterology Physician Primary E8994 AR

DO — Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
04205019 Medicaid MS
3307407 Medicaid TN
7100407180 Medicaid KY
Copy-ready billing details
Provider: Gregory Szych, DO
NPI: 1841268521
Taxonomy: 207RG0100X (Gastroenterology Physician)
Address: 700 W FOREST AVE, STE 300, Jackson, TN, 38301

Other providers at this practice address

NPI Name Type Specialty Location
1801881958 Heath Broussard Individual Surgery Physician Jackson, TN
1902891914 John Duval Individual Gastroenterology Physician Jackson, TN
1366437956 Susan Francisco Individual Nephrology Physician Jackson, TN
1568452837 Kristi Riddle Individual Family Nurse Practitioner Jackson, TN
1952389397 Spirithoula Vasilopoulos Individual Nephrology Physician Jackson, TN
1952379786 Ronald Kirkland Individual Otolaryngology Physician Jackson, TN
1639147200 Robert Torstrick Individual Orthopaedic Hand Surgery Physician Jackson, TN
1306814843 Michael Smigielski Individual Orthopaedic Surgery Physician Jackson, TN

Verify this record

Cross-check NPI 1841268521 against the authoritative CMS record: view Gregory Szych on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Gregory Szych?
Gregory Szych is registered in NPPES with the primary taxonomy of Gastroenterology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-05-19.