Isaac Reinherz, MD
Sleep Medicine (Internal Medicine) Physician · Riverside, CA
Isaac Reinherz, MD is a sleep medicine (internal medicine) physician with a practice address in Riverside, California, and NPI 1396372215, issued on Mar 23, 2020. Check the license (California A185658, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Isaac Reinherz
- Credential
- MD
- Primary taxonomy
- Sleep Medicine (Internal Medicine) Physician 207RS0012X
- License numbers
- A185658 CA
4301511270 MI
Self-reported in NPPES; status is on the state search - Practice location
- 7117 Brockton Ave, Riverside, CA 92506
- Phone
- (951) 321-6315
- Enumerated
- Mar 23, 2020
- Record last updated
- Sep 24, 2025
- Fax
- (951) 784-3272
- Medicare enrollment
- Enrolled (PECOS I20231012002162); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest sleep medicine (internal medicine) physician records → All 129 in California → Look up another NPI →
Also registered at 7117 Brockton Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Apoorva Ananth, MDInternal Medicine Physician1558866863
- Hedy Assaad, MDPediatrics Physician1154302529
- Andre Babajanians, MDRheumatology Physician1255311676
Verify Isaac Reinherz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A185658Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average sleep medicine (internal medicine) physician in 2024
133 Medicare Part D claims for 43 beneficiaries, against an average of 585 among the 852 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Valsartan12 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: $48.56
2 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 664 providers of this specialty with any payment received $3,724.37 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
- Riverside Medical Clinic IncRiverside, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Isaac Reinherz among 129 sleep medicine (internal medicine) physician records in California
Isaac Reinherz, MD is one of 129 sleep medicine (internal medicine) physician records with a practice address in California. 95% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 87% of them.
- NPI issued2020 · 87% of these records are older, 9% newer
- In a Medicare fileYes · 95% of these records are
- In the CMS Doctors and Clinicians fileYes · 82% of these records are
- Graduated2020 · median 2006 among the 106 with a school on file
- Record last updated2025 · 35% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RS0012X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Sleep Medicine (Internal Medicine) Physician providers in California
There are 129 sleep medicine (internal medicine) physician records in California.
All 129 in California → Every provider in Riverside → Sleep Medicine (Internal Medicine) Physician nationwide →
The 8 sleep medicine (internal medicine) physician records with the nearest ZIP codes
- Delmer Henninger, MDMurrieta, CA 925631942394390
- Rajanigandha Dhokarh, M.DWildomar, CA 925951144417130
- Wesley Fleming, MDIrvine, CA 926041205922945
- Sahil Chopra, MDIrvine, CA 926181245545326
- Stacey Gunn, M.D.Irvine, CA 926181710206503
- Robert Lebby, MDAliso Viejo, CA 926561457344129
- Alfredo Colon-MarreroLoma Linda, CA 923501710539150
- Bruce Tammelin, M.D.Newport Beach, CA 926631942288709
Common questions
What is Isaac Reinherz, MD's NPI number?
Isaac Reinherz, MD's National Provider Identifier (NPI) is 1396372215, issued on Mar 23, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Isaac Reinherz, MD located?
The NPPES record lists a practice address at 7117 Brockton Ave, Riverside, CA, 92506. Phone: (951) 321-6315. Providers update this record themselves, so call before visiting.
How can I verify Isaac Reinherz, MD's license?
NPPES lists California license number A185658, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Isaac Reinherz, MD prescribe under Medicare Part D?
In 2024, Isaac Reinherz, MD had 133 Medicare Part D claims for 43 beneficiaries; the average among sleep medicine (internal medicine) physician prescribers was 585. 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.