Janet M. Schwartzenberg, MD
Rheumatology Physician · Amarillo, TX
Janet M. Schwartzenberg, MD is a rheumatology physician with a practice address in Amarillo, Texas, and NPI 1194767640, issued on Jun 11, 2006. Check the license (Texas J2135, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Janet M. Schwartzenberg
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- J2135 TX
Self-reported in NPPES; status is on the state search - Practice location
- 6700 W 9TH Ave, Amarillo, TX 79106
- Phone
- (806) 358-0200
- Enumerated
- Jun 11, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (806) 468-0730
- Medicaid ID
- 043944001 TX
- Medicare enrollment
- Enrolled (PECOS I20091209000260); accepts Medicare assignment
- Medical or professional school
- University Of Texas Southwestern Medical School At Dallas, 1991
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 545 in Texas → Look up another NPI →
Also registered at 6700 W 9TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Evan Adams, PHARM.D.Pharmacist1245886878
- Anita Adkins, LVNLicensed Vocational Nurse1538476668
- Cindy Anderson, FNP-CFamily Nurse Practitioner1487961371
- Kyla Beedy, FNP-CFamily Nurse Practitioner1083921100
- Angela Bennett, LVNLicensed Vocational Nurse1558678441
- Salli Blevins, RNRegistered Nurse1912214883
Verify Janet M. Schwartzenberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license J2135Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.5 times the Medicare Part D claims of the average rheumatology physician in 2024
12,954 Medicare Part D claims for 1,172 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 2,401 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen1,110 claims
- Hydroxychloroquine Sulfate863 claims
- Gabapentin855 claims
- Prednisone804 claims
- Tramadol Hcl620 claims
- Allopurinol473 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $5,056.15
190 payments; by number, the most common kind was food and beverage; the largest payer was Johnson & Johnson Health Care Systems Inc. The 4,486 providers of this specialty with any payment received $8,538.33 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
- Amarillo Medical Specialists,llpAmarillo, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Janet M. Schwartzenberg among 545 rheumatology physician records in Texas
Janet M. Schwartzenberg, MD is one of 545 rheumatology physician records with a practice address in Texas. 87% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 58% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1991 · median 2004 among the 417 with a school on file
- Record last updated2026 · 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 207RR0500X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Texas
There are 545 rheumatology physician records in Texas.
All 545 in Texas → Every provider in Amarillo → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Ming Chen, M.D., PH.D.Amarillo, TX 791061679766604
- Ali Hussein, M.D.Amarillo, TX 791061003278417
- Carlos Plata, M.D.Amarillo, TX 791061508872029
- William Brelsford, MD, FACP, FACRAmarillo, TX 791241770586703
- Chen Chao, MDAmarillo, TX 791241780200816
- Nicole Davey, M.D.Amarillo, TX 791241740440502
- Elena Ghetie, MDAmarillo, TX 791241396926093
- Brandy Lloyd, AGACNP-BCAmarillo, TX 791241598278475
Common questions
What is Janet M. Schwartzenberg, MD's NPI number?
Janet M. Schwartzenberg, MD's National Provider Identifier (NPI) is 1194767640, issued on Jun 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Janet M. Schwartzenberg, MD located?
The NPPES record lists a practice address at 6700 W 9TH Ave, Amarillo, TX, 79106. Phone: (806) 358-0200. Providers update this record themselves, so call before visiting.
How can I verify Janet M. Schwartzenberg, MD's license?
NPPES lists Texas license number J2135, 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 Janet M. Schwartzenberg, MD prescribe under Medicare Part D?
In 2024, Janet M. Schwartzenberg, MD had 12,954 Medicare Part D claims for 1,172 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Janet M. Schwartzenberg, MD's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.