Ashwin Viswanathan, M.D.
Neurological Surgery Physician · Houston, TX
Ashwin Viswanathan, M.D. is a neurological surgery physician with a practice address in Houston, Texas, and NPI 1699917047, issued on Apr 1, 2009. Check the license (Texas M2856, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ashwin Viswanathan
- Credential
- M.D.
- Primary taxonomy
- Neurological Surgery Physician 207T00000X
- License number
- M2856 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1709 Dryden RD, Houston, TX 77030
- Phone
- (713) 213-8181
- Enumerated
- Apr 1, 2009
- Record last updated
- Dec 4, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20100721000835); accepts Medicare assignment
- Medical or professional school
- Baylor College Of Medicine, 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurological surgery physician records → All 669 in Texas → Look up another NPI →
Also registered at 1709 Dryden RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anoop Agrawal, M.D.Internal Medicine Physician1659460277
- David Alleman, MDAnesthesiology Physician1093761454
- Nathan Baskin, M.D.Internal Medicine Physician1255626610
- Diane Biegel, CRNACertified Registered Nurse Anesthetist1457408296
- Kathleen Canty, CRNACertified Registered Nurse Anesthetist1821145533
- Stephanie Champion, M.D.Obstetrics & Gynecology Physician1518130459
Verify Ashwin Viswanathan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license M2856Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average neurological surgery physician in 2024
43 Medicare Part D claims for 34 beneficiaries, against an average of 172 among the 4,378 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 23 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen18 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 MIPS final score for 2023 (Medicare payment program): 91.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $14,310.94
51 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 5,377 providers of this specialty with any payment received $14,925.58 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
- Baylor College OF MedicineHouston, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ashwin Viswanathan among 669 neurological surgery physician records in Texas
Ashwin Viswanathan, M.D. is one of 669 neurological surgery physician records with a practice address in Texas. 80% 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 59% of them.
- NPI issued2009 · 59% of these records are older, 36% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2003 · median 2004 among the 451 with a school on file
- Record last updated2020 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurological Surgery Physician providers in Texas
There are 669 neurological surgery physician records in Texas.
All 669 in Texas → Every provider in Houston → Neurological Surgery Physician nationwide →
The 8 neurological surgery physician records with the nearest ZIP codes
- Alfonso Aldama, MDHouston, TX 770301164415170
- David Cech, MDHouston, TX 770301548254667
- Bruce Ehni, MDHouston, TX 770301205820446
- Richard Harper, MDHouston, TX 770301174516116
- Paul Holman, M.D.Houston, TX 770301386698314
- Dong Kim, MDHouston, TX 770301043292550
- Thomas Luerssen, M.D.Houston, TX 770301245233808
- Jacques Morcos, M.D., F.R.C.S.Houston, TX 770301205899937
Common questions
What is Ashwin Viswanathan, M.D.'s NPI number?
Ashwin Viswanathan, M.D.'s National Provider Identifier (NPI) is 1699917047, issued on Apr 1, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Ashwin Viswanathan, M.D. located?
The NPPES record lists a practice address at 1709 Dryden RD, Houston, TX, 77030. Phone: (713) 213-8181. Providers update this record themselves, so call before visiting.
How can I verify Ashwin Viswanathan, M.D.'s license?
NPPES lists Texas license number M2856, 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 Ashwin Viswanathan, M.D. prescribe under Medicare Part D?
In 2024, Ashwin Viswanathan, M.D. had 43 Medicare Part D claims for 34 beneficiaries; the average among neurological surgery physician prescribers was 172. Part D covers Medicare prescriptions only.
What is Ashwin Viswanathan, M.D.'s MIPS final score?
The 2023 MIPS final score is 91.3 of 100. 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.