Francis X. Riegler, MD
Specialist · Palmdale, CA
Francis X. Riegler, MD is a specialist with a practice address in Palmdale, California, and NPI 1750379947, issued on Oct 11, 2005. Check the license (California G78520, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Francis X. Riegler
- Credential
- MD
- Primary taxonomy
- Specialist 174400000X
- License number
- G78520 CA
Self-reported in NPPES; status is on the state search - Practice location
- 819 Auto Center Drive, Palmdale, CA 93551
- Phone
- (661) 267-6876
- Enumerated
- Oct 11, 2005
- Record last updated
- Feb 17, 2023
- Fax
- (661) 538-9438
- Medicare enrollment
- Enrolled (PECOS I20150326002117); accepts Medicare assignment
- Medical or professional school
- Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 819 Auto Center Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ray Damours, MDSpecialist1255329520
- Shahin Sadik, M.D., QME.Specialist1801884093
Verify Francis X. Riegler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license G78520Check 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% more Medicare Part D claims than the average specialist in 2024
1,406 Medicare Part D claims for 495 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 753 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen311 claims
- Gabapentin147 claims
- Oxycodone-Acetaminophen138 claims
- Oxycodone Hcl114 claims
- Pregabalin65 claims
- Morphine Sulfate Er61 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): 86.4 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: $73.31
1 payment: food and beverage; the largest payer was Spr Therapeutics, Inc. The 5,844 providers of this specialty with any payment received $4,760.79 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
- Universal Pain Management Medical CorporationApple Valley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Francis X. Riegler among 5,749 specialist records in California
Francis X. Riegler, MD is one of 5,749 specialist records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Record last updated2023 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in California
There are 5,749 specialist records in California.
All 5,749 in California → Every provider in Palmdale → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Syed Ahmed, M.D.Palmdale, CA 935511932188521
- Zoanne BracePalmdale, CA 935511710532015
- Ranjiv Choudhary, M.D.Palmdale, CA 935511790746014
- Ray Damours, MDPalmdale, CA 935511255329520
- Tyeshia GideonPalmdale, CA 935511124965157
- Anna Krzysiak, PTPalmdale, CA 935511720272370
- Shahin Sadik, M.D., QME.Palmdale, CA 935511801884093
- Jasbir Sandhu, MEDICAL DOCTORPalmdale, CA 935511396789970
Common questions
What is Francis X. Riegler, MD's NPI number?
Francis X. Riegler, MD's National Provider Identifier (NPI) is 1750379947, issued on Oct 11, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Francis X. Riegler, MD located?
The NPPES record lists a practice address at 819 Auto Center Drive, Palmdale, CA, 93551. Phone: (661) 267-6876. Providers update this record themselves, so call before visiting.
How can I verify Francis X. Riegler, MD's license?
NPPES lists California license number G78520, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Francis X. Riegler, MD prescribe under Medicare Part D?
In 2024, Francis X. Riegler, MD had 1,406 Medicare Part D claims for 495 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is Francis X. Riegler, MD's MIPS final score?
The 2023 MIPS final score is 86.4 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.