Neal S. Simpson, M.D.
Family Medicine Physician · Temecula, CA
Neal S. Simpson, M.D. is a family medicine physician with a practice address in Temecula, California, and NPI 1598873424, issued on Aug 29, 2006. Check the license (California G65204, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Neal S. Simpson
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G65204 CA
Self-reported in NPPES; status is on the state search - Practice location
- 31150 Temecula Parkway 202, Temecula, CA 92592
- Phone
- (951) 302-9468
- Enumerated
- Aug 29, 2006
- Record last updated
- Jan 4, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (951) 302-9649
- Medicaid ID
- 00G652040 CA
- Medicare enrollment
- Enrolled (PECOS I20090910000579); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 1987
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify Neal S. Simpson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G65204Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average family medicine physician in 2024
1,383 Medicare Part D claims for 143 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 109 claims were for opioids.
Most prescribed
- Prednisone53 claims
- Ibuprofen50 claims
- Pantoprazole Sodium45 claims
- Atorvastatin Calcium44 claims
- Amlodipine Besylate43 claims
- Tamsulosin Hcl43 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.
Bills Medicare through one group practice
- Dap Health IncSan Jacinto, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Neal S. Simpson among 17,133 family medicine physician records in California
Neal S. Simpson, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1987 · median 2005 among the 10,652 with a school on file
- Record last updated2017 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
80 family medicine physician records list a practice address in Temecula
They are 80 of the 4,057 NPPES records with a practice address in Temecula, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Temecula → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Emmanuel Awdishu, MDTemecula, CA 925921720630205
- Carrie Bacon, M.D.Temecula, CA 925921578576047
- Joshua Blosser, DOTemecula, CA 925921922629864
- Curtiss Combs, M.D.Temecula, CA 925921710925409
- Sylvia Gisi, M.D.Temecula, CA 925921720052541
- Tamara KelleyTemecula, CA 925921851456354
- M McDonald, M.D.Temecula, CA 925921093769150
- Robert McDonald, MDTemecula, CA 925921285671305
Common questions
What is Neal S. Simpson, M.D.'s NPI number?
Neal S. Simpson, M.D.'s National Provider Identifier (NPI) is 1598873424, issued on Aug 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Neal S. Simpson, M.D. located?
The NPPES record lists a practice address at 31150 Temecula Parkway 202, Temecula, CA, 92592. Phone: (951) 302-9468. Providers update this record themselves, so call before visiting.
How can I verify Neal S. Simpson, M.D.'s license?
NPPES lists California license number G65204, 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 Neal S. Simpson, M.D. prescribe under Medicare Part D?
In 2024, Neal S. Simpson, M.D. had 1,383 Medicare Part D claims for 143 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.