Mark Mitsuyuki Moriwaki, M.D.
Endocrinology, Diabetes & Metabolism Physician · Sacramento, CA
Mark Mitsuyuki Moriwaki, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Sacramento, California, and NPI 1295716090, issued on Nov 8, 2005. Check the license (California G74752, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Mitsuyuki Moriwaki
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- G74752 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4150 V St, Sacramento, CA 95817
- Phone
- (916) 734-3730
- Enumerated
- Nov 8, 2005
- Record last updated
- Jul 29, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (916) 734-7953
- Medicare enrollment
- Enrolled (PECOS I20080808000703); accepts Medicare assignment
- Medical or professional school
- University Of Hawaii John A. Burns School Of Medicine, 1991
- 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 4150 V St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark Mitsuyuki Moriwaki in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G74752Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% more Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
3,202 Medicare Part D claims for 443 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 48% of claims.
Most prescribed
- Levothyroxine Sodium542 claims
- Synthroid176 claims
- Metformin Hcl175 claims
- Alendronate Sodium142 claims
- Trulicity130 claims
- Jardiance127 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 2 group practices
- Regents OF The Univ OF CASacramento, CA
- Regents OF The University OF CaliforniaRoseville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Mitsuyuki Moriwaki among 1,131 endocrinology, diabetes & metabolism physician records in California
Mark Mitsuyuki Moriwaki, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1991 · median 2003 among the 779 with a school on file
- Record last updated2011 · 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
- Thomas Aoki, MDSacramento, CA 958171730151655
- Lars Berglund, MD PHDSacramento, CA 958171417929696
- Aili Guo, MDSacramento, CA 958171598822645
- Kent Ishihara, M.D.Sacramento, CA 958171679658280
- Siddika Karakas, M.D.Sacramento, CA 958171386629970
- Erin McCorry, M.D.Sacramento, CA 958171134495146
- James McMonagle, MDSacramento, CA 958171528174901
- Pamela Prescott, MDSacramento, CA 958171205808334
Common questions
What is Mark Mitsuyuki Moriwaki, M.D.'s NPI number?
Mark Mitsuyuki Moriwaki, M.D.'s National Provider Identifier (NPI) is 1295716090, issued on Nov 8, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark Mitsuyuki Moriwaki, M.D. located?
The NPPES record lists a practice address at 4150 V St, Sacramento, CA, 95817. Phone: (916) 734-3730. Providers update this record themselves, so call before visiting.
How can I verify Mark Mitsuyuki Moriwaki, M.D.'s license?
NPPES lists California license number G74752, 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 Mark Mitsuyuki Moriwaki, M.D. prescribe under Medicare Part D?
In 2024, Mark Mitsuyuki Moriwaki, M.D. had 3,202 Medicare Part D claims for 443 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.