Na Shen, M.D.
Endocrinology, Diabetes & Metabolism Physician · Thousand Oaks, CA
Na Shen, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Thousand Oaks, California, and NPI 1225268824, issued on Jul 17, 2009. Check the license (California A116462, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Na Shen
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- A116462 CA
Self-reported in NPPES; status is on the state search - Practice location
- 100 Moody CT, Thousand Oaks, CA 91360
- Phone
- (805) 418-3500
- Enumerated
- Jul 17, 2009
- Record last updated
- Dec 20, 2024
- Medicare enrollment
- Enrolled (PECOS I20140605002253); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Also registered at 100 Moody CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amy Chow, MDEndocrinology, Diabetes & Metabolism Physician1316255748
- Asra Farooqui, MDHospitalist Physician1437286796
- Rachel Ferrara, M.D.Family Medicine Physician1760616908
- Nazanin Gunn, M.D., M.H.A.Internal Medicine Physician1306165857
- Natalie Kadin, MDOtolaryngology Physician1457594160
- Samantha McKinney, AU.D.Audiologist1972943694
Verify Na Shen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A116462Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% more Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
3,640 Medicare Part D claims for 505 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 50% of claims.
Most prescribed
- Levothyroxine Sodium419 claims
- Ozempic346 claims
- Metformin Hcl Er261 claims
- Metformin Hcl259 claims
- Mounjaro247 claims
- Synthroid198 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): 86.1 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: $211.29
3 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 5,661 providers of this specialty with any payment received $5,742.15 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
- The Regents OF The University OF CaliforniaEncino, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Na Shen among 1,131 endocrinology, diabetes & metabolism physician records in California
Na Shen, M.D. is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 64% of them.
- NPI issued2009 · 64% of these records are older, 32% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2009 · median 2003 among the 779 with a school on file
- Record last updated2024 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in Thousand Oaks → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Lauren Beshay, MDThousand Oaks, CA 913601073010757
- Amy Chow, MDThousand Oaks, CA 913601316255748
- Joseph Pinzone, M.D.Thousand Oaks, CA 913601700893815
- Jennifer Siani, M.D.Westlake Village, CA 913611649613761
- Sarfraz Zaidi, MDThousand Oaks, CA 913621427157536
- Mark Geller, M.D.Tarzana, CA 913561093710345
- Yehuda Handelsman, M.D.Tarzana, CA 913561063453769
- Stuart Kramer, M.D.Tarzana, CA 913561649310277
Common questions
What is Na Shen, M.D.'s NPI number?
Na Shen, M.D.'s National Provider Identifier (NPI) is 1225268824, issued on Jul 17, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Na Shen, M.D. located?
The NPPES record lists a practice address at 100 Moody CT, Thousand Oaks, CA, 91360. Phone: (805) 418-3500. Providers update this record themselves, so call before visiting.
How can I verify Na Shen, M.D.'s license?
NPPES lists California license number A116462, 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 Na Shen, M.D. prescribe under Medicare Part D?
In 2024, Na Shen, M.D. had 3,640 Medicare Part D claims for 505 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Na Shen, M.D.'s MIPS final score?
The 2023 MIPS final score is 86.1 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.