Michael S. Basch, M.D.
Internal Medicine Physician · Temecula, CA
Michael S. Basch, M.D. is an internal medicine physician with a practice address in Temecula, California, and NPI 1790889350, issued on Sep 12, 2006. Check the license (California 015430, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael S. Basch
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 015430 CA
Self-reported in NPPES; status is on the state search - Practice location
- 41593 Winchester RD Ste 101, Temecula, CA 92590
- Phone
- (951) 719-1111
- Enumerated
- Sep 12, 2006
- Record last updated
- Jul 2, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (951) 719-1122
- Medicaid ID
- 3408935 CA
- Medicare enrollment
- Enrolled (PECOS I20240507003418); may accept Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Michael S. Basch in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 015430Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average internal medicine physician in 2024
8,922 Medicare Part D claims for 791 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 44 claims were for opioids.
Most prescribed
- Levothyroxine Sodium419 claims
- Atorvastatin Calcium364 claims
- Amlodipine Besylate332 claims
- Metformin Hcl312 claims
- Lisinopril286 claims
- Pantoprazole Sodium242 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: $755.42
38 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Acute Care Associates OF California PCWildomar, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael S. Basch among 17,696 internal medicine physician records in California
Michael S. Basch, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1994 · median 2004 among the 11,065 with a school on file
- Record last updated2013 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
52 internal medicine physician records list a practice address in Temecula
They are 52 of the 4,057 NPPES records with a practice address in Temecula, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Temecula → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Nichele Blosser, DOTemecula, CA 925901366079899
- Osvaldo Lopez, MDTemecula, CA 925901649294505
- Carl Sainten, M.D.Temecula, CA 925901902963796
- Nizar Salek, MDTemecula, CA 925901407813785
- Charles Taft, M.D.Temecula, CA 925901366409617
- Leo Zacks, M.D.Temecula, CA 925901386038578
- Syed Awais Ahmed, MDTemecula, CA 925911932858818
- Yogeshwar Chaturvedi, MDTemecula, CA 925911902929763
Common questions
What is Michael S. Basch, M.D.'s NPI number?
Michael S. Basch, M.D.'s National Provider Identifier (NPI) is 1790889350, issued on Sep 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael S. Basch, M.D. located?
The NPPES record lists a practice address at 41593 Winchester RD Ste 101, Temecula, CA, 92590. Phone: (951) 719-1111. Providers update this record themselves, so call before visiting.
How can I verify Michael S. Basch, M.D.'s license?
NPPES lists California license number 015430, 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 Michael S. Basch, M.D. prescribe under Medicare Part D?
In 2024, Michael S. Basch, M.D. had 8,922 Medicare Part D claims for 791 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.