I-Tsyr Shaw, MD
Endocrinology, Diabetes & Metabolism Physician · Sacramento, CA
I-Tsyr Shaw, MD is an endocrinology, diabetes & metabolism physician with a practice address in Sacramento, California, and NPI 1104026558, issued on Jul 24, 2007. Check the license (California C159832, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- I-Tsyr Shaw
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- C159832 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4241 Florin RD Ste 30&40, Sacramento, CA 95823
- Phone
- (916) 737-5555
- Enumerated
- Jul 24, 2007
- Record last updated
- May 11, 2026
- Fax
- (916) 436-5532
- Medicaid ID
- 0090475 OH
- Medicare enrollment
- Enrolled (PECOS I20130925000644); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Verify I-Tsyr Shaw in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C159832Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% more Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
3,993 Medicare Part D claims for 317 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 62% of claims.
Most prescribed
- Ozempic533 claims
- Metformin Hcl362 claims
- Lantus Solostar316 claims
- Jardiance272 claims
- Basaglar Kwikpen U-100242 claims
- Levothyroxine Sodium202 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: $540.67
23 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. 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
- Wellspace HealthSacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
I-Tsyr Shaw among 1,131 endocrinology, diabetes & metabolism physician records in California
I-Tsyr Shaw, MD 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 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 42% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2007 · median 2003 among the 779 with a school on file
- Record last updated2026 · 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 Sacramento → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Craig Smith, MDSacramento, CA 958231811075542
- Laura Hoffman, MDSacramento, CA 958251700964467
- Aaron Ross Jimenez, MDSacramento, CA 958251053816157
- Barbara Livermore, MDSacramento, CA 958251457439135
- Mark Sheffield, MDSacramento, CA 958251144372376
- You Sher Tay, M.D.Sacramento, CA 958251508032350
- Jennifer Nuovo, MDSacramento, CA 958261780140673
- Jameson AzulSacramento, CA 958171699192930
Common questions
What is I-Tsyr Shaw, MD's NPI number?
I-Tsyr Shaw, MD's National Provider Identifier (NPI) is 1104026558, issued on Jul 24, 2007. An NPI identifies a provider in billing; it is not a license.
Where is I-Tsyr Shaw, MD located?
The NPPES record lists a practice address at 4241 Florin RD Ste 30&40, Sacramento, CA, 95823. Phone: (916) 737-5555. Providers update this record themselves, so call before visiting.
How can I verify I-Tsyr Shaw, MD's license?
NPPES lists California license number C159832, 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 I-Tsyr Shaw, MD prescribe under Medicare Part D?
In 2024, I-Tsyr Shaw, MD had 3,993 Medicare Part D claims for 317 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.