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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

GULF COAST RHEUMATOLOGY, PLLC
NPI 1164955027
Internal Medicine - Rheumatology in Trinity, FL

Active since April 07, 2017
9332 STATE ROAD 54 STE 301, TRINITY, FL 34655(727) 940-9391(727) 937-4003 Get Directions Write a Review

NPPES record last updated: October 20, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 23, 2019, Apr 24, 2018, Dec 19, 2017 and 2 more (5 updates tracked since 2017).

About Gulf Coast Rheumatology, Pllc NPPES

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

GULF COAST RHEUMATOLOGY, PLLC (NPI 1164955027) is a healthcare organization registered as a rheumatology in Trinity, Florida and active in the NPI registry since April 2017. The organization lists Adam Jacob Grunbaum, President/ceo, as its authorized official.

NPPES Registry Identity

NPI1164955027
Entity TypeOrganization
Primary Taxonomy207RR0500X
Legal Business NameGULF COAST RHEUMATOLOGY, PLLC
Location Address9332 STATE ROAD 54 STE 301Trinity, FL 34655-1810
Mailing Address850 E Lime St # 1939Tarpon Springs, FL 34689-4702 · (727) 940-9391 · Fax (727) 937-4003
Phone(727) 940-9391
Fax(727) 937-4003
Organization SubpartNo
Authorized OfficialAdam Jacob GrunbaumPresident/ceo · (727) 940-9391
Enumeration DateApril 7, 2017
Last NPPES UpdateOctober 20, 20265 updates tracked since enumeration
NPPES CertifiedOctober 20, 2026
✔ NPI 1164955027 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in FL · OS9755
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
Also ListedNon-Pharmacy Dispensing SiteTaxonomy 332900000X
9332 STATE ROAD 54 STE 301, Trinity, FL 34655
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Florida Blue (BlueCross BlueShield FL), Florida Blue HMO (a BlueCross BlueShield FL company), Molina Healthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gulf Coast Rheumatology, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Gulf Coast Rheumatology, PLLC, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Adam Grunbaum, DO, FACOI, FACR
Rheumatology
NPI 1255522488
9332 STATE ROAD 54 STE 301
Trinity, FL 34655
(727) 940-9391
✔ PECOS✔ Accepts MedicareSame address
Monica Shah, D.O
Rheumatology
NPI 1518411602
9332 STATE ROAD 54 STE 301
Trinity, FL 34655
(727) 940-9391
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Gulf Coast Rheumatology, PLLC's NPI number?

The NPI number for Gulf Coast Rheumatology, PLLC is 1164955027. It was assigned to this organization in the NPPES registry on April 7, 2017.

Where is Gulf Coast Rheumatology, PLLC located?

Gulf Coast Rheumatology, PLLC is located at 9332 State Road 54 Ste 301, Trinity, FL 34655. The listed phone number is (727) 940-9391.

What is Gulf Coast Rheumatology, PLLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Gulf Coast Rheumatology, PLLC enrolled in Medicare?

Yes. Gulf Coast Rheumatology, PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Gulf Coast Rheumatology, PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Rheumatology, reassign their Medicare billing to Gulf Coast Rheumatology, PLLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Gulf Coast Rheumatology, PLLC accept?

Health plans from Florida Blue (BlueCross BlueShield FL), Florida Blue HMO (a BlueCross BlueShield FL company) and Molina Healthcare list Gulf Coast Rheumatology, PLLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Gulf Coast Rheumatology, PLLC was last updated on October 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.