Robert V. Demartini, M.D.
Internal Medicine Physician · Grapevine, TX
Robert V. Demartini, M.D. is an internal medicine physician with a practice address in Grapevine, Texas, and NPI 1275544694, issued on Aug 10, 2006. Check the license (Texas H4281, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Robert V. Demartini
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- H4281 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1600 W College St, Grapevine, TX 76051
- Phone
- (817) 481-1511
- Enumerated
- Aug 10, 2006
- Record last updated
- Mar 30, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (817) 442-8243
- Medicaid ID
- 042463202 TX
- Medicare enrollment
- Enrolled (PECOS I20050311000710); may accept Medicare assignment
- Medical or professional school
- New York Medical College, 1987
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 1600 W College St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Robert V. Demartini in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license H4281Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% more Medicare Part D claims than the average internal medicine physician in 2024
4,631 Medicare Part D claims for 119 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 30 claims were for opioids.
Most prescribed
- Donepezil Hcl274 claims
- Levothyroxine Sodium237 claims
- Memantine Hcl236 claims
- Quetiapine Fumarate216 claims
- Amlodipine Besylate197 claims
- Atorvastatin Calcium189 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.
Robert V. Demartini among 9,175 internal medicine physician records in Texas
Robert V. Demartini, M.D. is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1987 · median 2004 among the 6,088 with a school on file
- Record last updated2009 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
27 internal medicine physician records list a practice address in Grapevine
They are 27 of the 1,104 NPPES records with a practice address in Grapevine, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Grapevine → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Eniko Barthel, M.D.Grapevine, TX 760511558365130
- Carlos Bazaldua, M.D.Grapevine, TX 760511487683744
- Naznin Esphani, MDGrapevine, TX 760511306846852
- John Ferris, MDGrapevine, TX 760511538257084
- Martyn Gordon, MDGrapevine, TX 760511972689750
- Ronald Lester, MDGrapevine, TX 760511942229539
- Monalisa Mitra, DOGrapevine, TX 760511710097456
- John Page, MDGrapevine, TX 760511871679654
Common questions
What is Robert V. Demartini, M.D.'s NPI number?
Robert V. Demartini, M.D.'s National Provider Identifier (NPI) is 1275544694, issued on Aug 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert V. Demartini, M.D. located?
The NPPES record lists a practice address at 1600 W College St, Grapevine, TX, 76051. Phone: (817) 481-1511. Providers update this record themselves, so call before visiting.
How can I verify Robert V. Demartini, M.D.'s license?
NPPES lists Texas license number H4281, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert V. Demartini, M.D. prescribe under Medicare Part D?
In 2024, Robert V. Demartini, M.D. had 4,631 Medicare Part D claims for 119 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.