DR. ROBERT JOHN GRAMMATICO M.D.
NPI 1548503311
Emergency Medicine in St Petersburg, FL
About Dr. Robert John Grammatico M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ROBERT JOHN GRAMMATICO M.D. (NPI 1548503311) is an individual emergency medicine provider in St Petersburg, Florida, licensed in Florida (ME125638) and active in the NPI registry since March 2013. He is enrolled in Medicare PECOS, is affiliated with Caromont Regional Medical Center, and is a graduate of New York Medical College (2013).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Robert John Grammatico M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
11Medicare enrollment records show Robert Grammatico reassigns Medicare billing to 11 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tampa, FL 33613
- Reassigned Medicare billing, Florida enrollment
- 231 clinicians in this Medicare group
Sebring, FL 33872
- Reassigned Medicare billing, Florida enrollment
- 318 clinicians in this Medicare group
Birmingham, AL 35205
- Reassigned Medicare billing, Florida enrollment
- 802 clinicians in this Medicare group
Myrtle Beach, SC 29572
- Reassigned Medicare billing, South Carolina enrollment
- 559 clinicians in this Medicare group
Charlotte, NC 28277
- Reassigned Medicare billing, North Carolina enrollment
- 99 clinicians in this Medicare group
Matthews, NC 28104
- Reassigned Medicare billing, North Carolina enrollment
- 77 clinicians in this Medicare group
Gastonia, NC 28054
- Reassigned Medicare billing, North Carolina enrollment
- 200 clinicians in this Medicare group
Albemarle, NC 28001
- Reassigned Medicare billing, North Carolina enrollment
- 144 clinicians in this Medicare group
Dunn, NC 28334
- Reassigned Medicare billing, North Carolina enrollment
- 373 clinicians in this Medicare group
Dallas, TX 75246
- Reassigned Medicare billing, Texas enrollment
- 1,044 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Caromont Regional Medical Center
Acute Care Hospitals · Gastonia, NCBaylor Scott & White Medical Center - Marble Falls
Acute Care Hospitals · Marble Falls, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 33710 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ST PETERSBURG, FL 33710
ST PETERSBURG, FL 33710
ST PETERSBURG, FL 33710
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 Robert Grammatico's NPI number?
The NPI number for Robert Grammatico is 1548503311. It was assigned to this individual provider in the NPPES registry on March 30, 2013.
Where is Robert Grammatico located?
Robert Grammatico practices at 6500 38th Ave N, St Petersburg, FL 33710. The listed phone number is (727) 384-1414.
What is Robert Grammatico's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Robert Grammatico enrolled in Medicare?
Yes. Robert Grammatico is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Robert Grammatico's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Grammatico reassigns Medicare benefits to 11 organizations: Tampa Bay Emergency Physicians LLC (Tampa, FL), Tampa Bay Emergency Physicians-Heartland LLC (Sebring, FL), Paragon Contracting Services LLC (Birmingham, AL), Acs Primary Care Physicians - Southeast PC (Myrtle Beach, SC), Ballantyne Emergency Physicians PLLC (Charlotte, NC) and 6 more organizations, listed in the Medicare section above. Each 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 Robert Grammatico's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Robert Grammatico accept?
Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Oscar Health, Oscar Health Maintenance Organization of Florida and Oscar Insurance Company list Robert Grammatico 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.
Is Robert Grammatico affiliated with any hospitals?
According to CMS data, Robert Grammatico is affiliated with Caromont Regional Medical Center and Baylor Scott & White Medical Center - Marble Falls.
When was this NPI record last updated?
The NPPES record for Robert Grammatico was last updated on November 1, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.
# Dr. Robert John Grammatico, M.D. · NPI 1548503311
Emergency Medicine physician in St Petersburg, Florida. Individual provider, active in the CMS NPPES registry since March 30, 2013.
## Identity
- **NPI:** 1548503311 (Entity type: Individual)
- **Enumerated:** March 30, 2013
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** ME125638 (Florida)
- **Sole proprietor:** No
## Practice location
- **Address:** 6500 38TH AVE N, St Petersburg, FL 33710-1629
- **Phone:** (727) 384-1414
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 11 organizations under Medicare reassignment (form CMS-855R): Tampa Bay Emergency Physicians LLC (NPI 1114977428, Tampa, FL); Tampa Bay Emergency Physicians-Heartland LLC (NPI 1043661408, Sebring, FL); Paragon Contracting Services LLC (NPI 1225071459, Birmingham, AL); Acs Primary Care Physicians - Southeast PC (NPI 1861430555, Myrtle Beach, SC); Ballantyne Emergency Physicians PLLC (NPI 1164052726, Charlotte, NC); and 6 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York Medical College, class of 2013
## Record status
- **NPPES last updated:** November 1, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1548503311) · Data from the CMS NPPES public registry.