Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Greg Gulbransen, DO

Pediatrics Physician in Oyster Bay, NY · enumerated 2005 · practices at Oyster Bay Pediatrics & Adolescent Medicine.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1073511622

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Greg Gulbransen

Credential DO

Sex Male

Practice address 229 South St, Oyster Bay, NY, 11771

Phone (516) 922-3131

Fax (516) 922-5218

Enumeration date Jul 8, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 205715-1 (NY) Primary

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
0099840-002	Other	NY	CIGNA
108783	Other	NY	VYTRA
1938888002	Other	NY	UNITED HEALTH
OB203	Other	NY	BLUE CROSS
NS0002187	Other	NY	SELECT PRO
2698521	Other	NY	GHI
2C7659	Other	NY	PHCS
7734061	Other	NY	AETNA
02232162	Medicaid	NY	-
P2160711	Other	NY	OXFORD

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 → Validate an NPI →

Frequently asked questions

How do I verify Greg Gulbransen's NPI record?

Cross-check NPI 1073511622 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1073511622 active?

Yes, as of the latest NPPES snapshot, NPI 1073511622 is active (record last updated 2007-07-08).

Other providers at this practice address

Browse all →

Joni Scheidt Pediatrics Physician · Oyster Bay, NY NPI 1932281516 Oyster Bay Pediatrics & Adolescent Medicine Pediatric Adolescent Medicine Physician · Oyster Bay, NY NPI 1740319334

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.