Natraj Aiyappan Shanmugam, M.D.
Internal Medicine Physician · College Station, TX
Natraj Aiyappan Shanmugam, M.D. is an internal medicine physician with a practice address in College Station, Texas, and NPI 1043449465, issued on Jul 7, 2009. Check the license (Texas P8538, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Natraj Aiyappan Shanmugam
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- P8538 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1602 Rock Prairie RD, College Station, TX 77845
- Phone
- (979) 696-5663
- Enumerated
- Jul 7, 2009
- Record last updated
- Feb 24, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (979) 694-1319
- Medicare enrollment
- Enrolled (PECOS I20140221001399); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 1602 Rock Prairie RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Charles Anderson, MDGynecology Physician1518965078
- Margaret Anderson-Brown, MDPediatrics Physician1346280930
- David Berzon, M.D.Critical Care Medicine (Internal Medicine) Physician1346282423
- Jennifer Blasingame, M.D.Obstetrics & Gynecology Physician1730104233
- Angeletta Brown, M.D.Plastic Surgery Physician1023192929
Verify Natraj Aiyappan Shanmugam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license P8538Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1% fewer Medicare Part D claims than the average internal medicine physician in 2024
3,136 Medicare Part D claims for 288 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 53% of claims.
Most prescribed
- Ozempic331 claims
- Metformin Hcl Er184 claims
- Levothyroxine Sodium167 claims
- Synthroid160 claims
- Jardiance138 claims
- Rosuvastatin Calcium91 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: $3,531.02
77 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Natraj Aiyappan Shanmugam among 9,175 internal medicine physician records in Texas
Natraj Aiyappan Shanmugam, 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 2009, is newer than 54% of them.
- NPI issued2009 · 54% of these records are older, 42% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2009 · median 2004 among the 6,088 with a school on file
- Record last updated2016 · 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).
40 internal medicine physician records list a practice address in College Station
They are 40 of the 1,752 NPPES records with a practice address in College Station, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in College Station → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Philip Alexander, MDCollege Station, TX 778451255393104
- James Bonds, MDCollege Station, TX 778451093709511
- David Buras, MDCollege Station, TX 778451245301373
- Timothy Byrd, M.D.College Station, TX 778451972764868
- Kelly Grillo, MDCollege Station, TX 778451306851274
- Alexander Kunjappy, MDCollege Station, TX 778451871697441
- James Mason, MDCollege Station, TX 778451497717326
- Kate Moran, MDCollege Station, TX 778451295769826
Common questions
What is Natraj Aiyappan Shanmugam, M.D.'s NPI number?
Natraj Aiyappan Shanmugam, M.D.'s National Provider Identifier (NPI) is 1043449465, issued on Jul 7, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Natraj Aiyappan Shanmugam, M.D. located?
The NPPES record lists a practice address at 1602 Rock Prairie RD, College Station, TX, 77845. Phone: (979) 696-5663. Providers update this record themselves, so call before visiting.
How can I verify Natraj Aiyappan Shanmugam, M.D.'s license?
NPPES lists Texas license number P8538, 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 Natraj Aiyappan Shanmugam, M.D. prescribe under Medicare Part D?
In 2024, Natraj Aiyappan Shanmugam, M.D. had 3,136 Medicare Part D claims for 288 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.