Stephen Justin Sims, MD
Family Medicine Physician · Mountain View, CA
Stephen Justin Sims, MD is a family medicine physician with a practice address in Mountain View, California, and NPI 1568453264, issued on Nov 2, 2005. Check the license (California G69269, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stephen Justin Sims
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G69269 CA
Self-reported in NPPES; status is on the state search - Practice location
- 525 South Dr Ste 107, Mountain View, CA 94040
- Phone
- (650) 386-0386
- Enumerated
- Nov 2, 2005
- Record last updated
- Feb 27, 2025
- Fax
- (650) 386-0468
- Medicare enrollment
- Enrolled (PECOS I20110713000173); accepts Medicare assignment
- Medical or professional school
- State University Of New York Downstate Medical Center, 1989
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 525 South Dr Ste 107
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Diana Hendry, MS, RD, CDERegistered Dietitian1134656168
- Yesim Kanlioglu, P.APhysician Assistant1598021537
- Rachel Moorman, PA-CPhysician Assistant1225913262
Verify Stephen Justin Sims in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G69269Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% more Medicare Part D claims than the average family medicine physician in 2024
3,776 Medicare Part D claims for 359 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 81 claims were for opioids.
Most prescribed
- Atorvastatin Calcium520 claims
- Levothyroxine Sodium259 claims
- Rosuvastatin Calcium230 claims
- Amlodipine Besylate165 claims
- Lisinopril154 claims
- Metformin Hcl125 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 MIPS final score for 2023 (Medicare payment program): 88 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $252.18
7 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 55,478 providers of this specialty with any payment received $902.55 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
- Bass Medical GroupMountain View, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen Justin Sims among 17,133 family medicine physician records in California
Stephen Justin Sims, MD 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1989 · median 2005 among the 10,652 with a school on file
- Record last updated2025 · 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).
60 family medicine physician records list a practice address in Mountain View
They are 60 of the 2,467 NPPES records with a practice address in Mountain View, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Mountain View → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Mala Ahluwalia, MDMountain View, CA 940401831144898
- Philip Brosterhous, MDMountain View, CA 940401700847092
- Calvin Chen, MDMountain View, CA 940401659369544
- Christopher Chin, MDMountain View, CA 940401194776401
- Yaara Dror, MDMountain View, CA 940401457307084
- Patricia Einarson, MD, MBAMountain View, CA 940401750375796
- Fannie Huang, MDMountain View, CA 940401750321931
- James Laroy, M.DMountain View, CA 940401043265226
Common questions
What is Stephen Justin Sims, MD's NPI number?
Stephen Justin Sims, MD's National Provider Identifier (NPI) is 1568453264, issued on Nov 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Justin Sims, MD located?
The NPPES record lists a practice address at 525 South Dr Ste 107, Mountain View, CA, 94040. Phone: (650) 386-0386. Providers update this record themselves, so call before visiting.
How can I verify Stephen Justin Sims, MD's license?
NPPES lists California license number G69269, 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 Stephen Justin Sims, MD prescribe under Medicare Part D?
In 2024, Stephen Justin Sims, MD had 3,776 Medicare Part D claims for 359 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Stephen Justin Sims, MD's MIPS final score?
The 2023 MIPS final score is 88 of 100. 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.