Sriram S. Nathan, M.D.
Advanced Heart Failure and Transplant Cardiology Physician · Houston, TX
Sriram S. Nathan, M.D. is an advanced heart failure and transplant cardiology physician with a practice address in Houston, Texas, and NPI 1285602607, issued on Mar 10, 2006. Check the license (Texas N5279, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Sriram S. Nathan
- Credential
- M.D.
- Primary taxonomy
- Advanced Heart Failure and Transplant Cardiology Physician 207RA0001X
- License number
- N5279 TX
Self-reported in NPPES; status is on the state search - Practice location
- 6400 Fannin St, Houston, TX 77030
- Phone
- (713) 704-4300
- Enumerated
- Mar 10, 2006
- Record last updated
- Jan 8, 2025
- Fax
- (713) 704-4355
- Medicare enrollment
- Enrolled (PECOS I20100429000903); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest advanced heart failure and transplant cardiology physician records → All 83 in Texas → Look up another NPI →
Also registered at 6400 Fannin St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ore-Ofeoluwatomi Adesina, MDNeuro-ophthalmology Physician1356501522
- Rana Afifi, MDVascular Surgery Physician1013340132
- Clayton Agler, M.D.Student in an Organized Health Care Education/Training Program1962341412
- Amna Aijaz, MBBS, MDInternal Medicine Physician1922596840
- Nabil Al-Muhtaseb, MB, CHB, MS, CCC-AAudiologist1962427799
- Carolyn Amato, PHARMDSolid Organ Transplant Pharmacist1194647784
Verify Sriram S. Nathan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license N5279Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.7 times the Medicare Part D claims of the average advanced heart failure and transplant cardiology physician in 2024
5,321 Medicare Part D claims for 338 beneficiaries, against an average of 1,965 among the 1,124 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Pantoprazole Sodium356 claims
- Warfarin Sodium313 claims
- Amlodipine Besylate220 claims
- Atorvastatin Calcium220 claims
- Losartan Potassium206 claims
- Potassium Chloride165 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 82.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $999.70
11 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 1,027 providers of this specialty with any payment received $10,265.85 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
- UT PhysiciansSugar Land, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sriram S. Nathan among 83 advanced heart failure and transplant cardiology physician records in Texas
Sriram S. Nathan, M.D. is one of 83 advanced heart failure and transplant cardiology physician records with a practice address in Texas. 99% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 83% newer
- In a Medicare fileYes · 99% of these records are
- In the CMS Doctors and Clinicians fileYes · 93% of these records are
- Graduated1991 · median 2008 among the 77 with a school on file
- Record last updated2025 · 23% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RA0001X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Advanced Heart Failure and Transplant Cardiology Physician providers in Texas
There are 83 advanced heart failure and transplant cardiology physician records in Texas.
All 83 in Texas → Every provider in Houston → Advanced Heart Failure and Transplant Cardiology Physician nationwide →
The 8 advanced heart failure and transplant cardiology physician records with the nearest ZIP codes
- Arvind Bhimaraj, M.D.,Houston, TX 770301275864878
- Andrew Civitello, M.D.Houston, TX 770301104863745
- Janardhana Gorthi, MBBSHouston, TX 770301942492228
- Ashrith Guha, M.D.Houston, TX 770301962609693
- Ju Kim, M.D.Houston, TX 770301841426194
- Cindy Martin, MDHouston, TX 770301649468497
- Ajith Nair, M.D.Houston, TX 770301679747950
- Selby Oberton, M.D.Houston, TX 770301437395415
Common questions
What is Sriram S. Nathan, M.D.'s NPI number?
Sriram S. Nathan, M.D.'s National Provider Identifier (NPI) is 1285602607, issued on Mar 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sriram S. Nathan, M.D. located?
The NPPES record lists a practice address at 6400 Fannin St, Houston, TX, 77030. Phone: (713) 704-4300. Providers update this record themselves, so call before visiting.
How can I verify Sriram S. Nathan, M.D.'s license?
NPPES lists Texas license number N5279, 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 Sriram S. Nathan, M.D. prescribe under Medicare Part D?
In 2024, Sriram S. Nathan, M.D. had 5,321 Medicare Part D claims for 338 beneficiaries; the average among advanced heart failure and transplant cardiology physician prescribers was 1,965. Part D covers Medicare prescriptions only.
What is Sriram S. Nathan, M.D.'s MIPS final score?
The 2023 MIPS final score is 82.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.