Giancarlo Martin Diaz-Zamora, M.D.
Rheumatology Physician · Raleigh, NC
Giancarlo Martin Diaz-Zamora, M.D. is a rheumatology physician with a practice address in Raleigh, North Carolina, and NPI 1215191457, issued on Jul 16, 2008. Check the license on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- Giancarlo Martin Diaz-Zamora
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License numbers
- 42489 IA
4301092269 MI
Self-reported in NPPES; status is on the state search - Practice location
- 8300 Health Park Ste 211, Raleigh, NC 27615
- Phone
- (919) 769-6100
- Enumerated
- Jul 16, 2008
- Record last updated
- Aug 26, 2024
- Fax
- (919) 322-0542
- Medicare enrollment
- Enrolled (PECOS I20230215003058); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 234 in North Carolina → Look up another NPI →
Also registered at 8300 Health Park Ste 211
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Atul Kapila, MDRheumatology Physician1952744294
- Katheryn Lordy, PAPhysician Assistant1013633155
Verify Giancarlo Martin Diaz-Zamora in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average rheumatology physician in 2024
445 Medicare Part D claims for 111 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Prednisone91 claims
- Methotrexate90 claims
- Hydroxychloroquine Sulfate53 claims
- Leflunomide32 claims
- Humira(Cf) Pen28 claims
- Allopurinol27 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,308.64
69 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Raleigh Rheumatology Associates PLLCRaleigh, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Giancarlo Martin Diaz-Zamora among 234 rheumatology physician records in North Carolina
Giancarlo Martin Diaz-Zamora, M.D. is one of 234 rheumatology physician records with a practice address in North Carolina. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 59% of them.
- NPI issued2008 · 59% of these records are older, 33% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2004 · median 2005 among the 158 with a school on file
- Record last updated2024 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in North Carolina
There are 234 rheumatology physician records in North Carolina.
All 234 in North Carolina → Every provider in Raleigh → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Atul Kapila, MDRaleigh, NC 276151952744294
- Kavitta Allem, M.D.Raleigh, NC 276141588891022
- Priyank Chaudhary, M.D., MBSRaleigh, NC 276141437447844
- Nazmul Kabir, MDRaleigh, NC 276141407245848
- David Michel, MDRaleigh, NC 276141851558100
- Rujuta Saraiya, MDRaleigh, NC 276141720241573
- Ananta Subedi, MDRaleigh, NC 276141467737601
- Akash Gupta, MDRaleigh, NC 276171437512027
Common questions
What is Giancarlo Martin Diaz-Zamora, M.D.'s NPI number?
Giancarlo Martin Diaz-Zamora, M.D.'s National Provider Identifier (NPI) is 1215191457, issued on Jul 16, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Giancarlo Martin Diaz-Zamora, M.D. located?
The NPPES record lists a practice address at 8300 Health Park Ste 211, Raleigh, NC, 27615. Phone: (919) 769-6100. Providers update this record themselves, so call before visiting.
How can I verify Giancarlo Martin Diaz-Zamora, M.D.'s license?
Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Giancarlo Martin Diaz-Zamora, M.D. prescribe under Medicare Part D?
In 2024, Giancarlo Martin Diaz-Zamora, M.D. had 445 Medicare Part D claims for 111 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.