Dr. Adam Jacob Grunbaum, DO, FACOI, FACR

Dr. Adam Jacob Grunbaum is a Rheumatology Physician provider (Internal Medicine) practicing in Trinity, FL, registered in the NPPES registry with NPI 1255522488 since 2007. The credential DO stands for Doctor of Osteopathic Medicine. Practices at Gulf Coast Rheumatology, Pllc (listed at the same practice address in NPPES).

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NPI	1255522488
Entity type	Individual (Type 1)
Name	Dr. Adam Jacob Grunbaum
Credential	DO, FACOI, FACR
Sex	Male
Practice address	9332 STATE ROAD 54 STE 301, Trinity, FL, 34655
Phone	7279409391
Fax	7279374003
Enumeration date	2007-08-05
Last updated in NPPES	2019-01-23

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
207RR0500X	Rheumatology Physician	Primary	OS9755	FL

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

Copy-ready billing details

Provider: Adam Grunbaum, DO, FACOI, FACR
NPI: 1255522488
Taxonomy: 207RR0500X (Rheumatology Physician)
Address: 9332 STATE ROAD 54 STE 301, Trinity, FL, 34655

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1518411602	Monica Shah	Individual	Rheumatology Physician	Trinity, FL
1164955027	Gulf Coast Rheumatology, Pllc	Organization	Rheumatology Physician	Trinity, FL
1205576279	Don Woody	Individual	Rheumatology Physician	Trinity, FL

Verify this record

Cross-check NPI 1255522488 against the authoritative CMS record: view Dr. Adam Jacob Grunbaum 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

What specialty is Adam Grunbaum?

Adam Grunbaum is registered in NPPES with the primary taxonomy of Rheumatology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2019-01-23.