NPPES file of Aug 9, 2026

Romana Sibyl Kleinguenther, M.D.

Neurology Physician · San Antonio, TX

Romana Sibyl Kleinguenther, M.D. is a neurology physician with a practice address in San Antonio, Texas, and NPI 1235224379, issued on Oct 4, 2006. Check the license (Texas J1101, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235224379
Name
Romana Sibyl Kleinguenther
Credential
M.D.
Primary taxonomy
Neurology Physician 2084N0400X
License number
J1101 TX
Self-reported in NPPES; status is on the state search
Practice location
903 W Martin St, San Antonio, TX 78207
Phone
(210) 358-9887
Enumerated
Oct 4, 2006
Record last updated
Aug 27, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicaid ID
100117403 TX
Medicare enrollment
Enrolled (PECOS I20140513001344); accepts Medicare assignment
Medical or professional school
University Of Texas Medical School At San Antonio, 1990
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 903 W Martin St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Rana AbdelwahabStudent in an Organized Health Care Education/Training Program1194668525
  2. Sandra Adams, MDPulmonary Disease Physician1669483186
  3. Leticia Aguilar, MDFamily Medicine Physician1760451009
  4. Zuha AlamStudent in an Organized Health Care Education/Training Program1932995669
  5. Samantha Alvarado, MDObstetrics Physician1932894862
  6. Daniel Amram, MDStudent in an Organized Health Care Education/Training Program1265236822

Verify Romana Sibyl Kleinguenther in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license J1101
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

32% fewer Medicare Part D claims than the average neurology physician in 2024

936 Medicare Part D claims for 145 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.

  1. Romana Kleinguenther936
  2. Specialty average1,370

Most prescribed

  1. Topiramate126 claims
  2. Levetiracetam102 claims
  3. Gabapentin74 claims
  4. Oxcarbazepine62 claims
  5. Divalproex Sodium50 claims
  6. Carbidopa-Levodopa44 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: $378.40

15 payments; by number, the most common kind was food and beverage; the largest payer was Neurelis, Inc. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Romana Kleinguenther$378.40
  2. Specialty average$8,318.07

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

  1. University OF Texas Health Science Center AT San AntonioSan Antonio, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Romana Sibyl Kleinguenther among 1,382 neurology physician records in Texas

Romana Sibyl Kleinguenther, M.D. is one of 1,382 neurology 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 11% of them.

  • NPI issued2006 · 11% of these records are older, 61% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated1990 · median 2003 among the 930 with a school on file
  • Record last updated2014 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in Texas

There are 1,382 neurology physician records in Texas.

The 8 neurology physician records with the nearest ZIP codes

  1. Ishan Adhikari, MDSan Antonio, TX 782071205129673
  2. Robert Hart, MDSan Antonio, TX 782071417064577
  3. Pearl Jones, MDSan Antonio, TX 782091578706909
  4. Juan Ramirez Castaneda, M.D.San Antonio, TX 782091275797680
  5. Domingo Lara, MDSan Antonio, TX 782121861427247
  6. Deonna Reese-White, MD, MBASan Antonio, TX 782121972171288
  7. Aamir Siddiqi, M.D.San Antonio, TX 782121275503575
  8. Eithan Kotkowski, MD, PHDSan Antonio, TX 782141497332498

Common questions

What is Romana Sibyl Kleinguenther, M.D.'s NPI number?

Romana Sibyl Kleinguenther, M.D.'s National Provider Identifier (NPI) is 1235224379, issued on Oct 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Romana Sibyl Kleinguenther, M.D. located?

The NPPES record lists a practice address at 903 W Martin St, San Antonio, TX, 78207. Phone: (210) 358-9887. Providers update this record themselves, so call before visiting.

How can I verify Romana Sibyl Kleinguenther, M.D.'s license?

NPPES lists Texas license number J1101, 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 Romana Sibyl Kleinguenther, M.D. prescribe under Medicare Part D?

In 2024, Romana Sibyl Kleinguenther, M.D. had 936 Medicare Part D claims for 145 beneficiaries; the average among neurology physician prescribers was 1,370. 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.