Garrison Matthew Tong, MD
Endocrinology, Diabetes & Metabolism Physician · Los Angeles, CA
Garrison Matthew Tong, MD is an endocrinology, diabetes & metabolism physician with a practice address in Los Angeles, California, and NPI 1639240609, issued on Nov 13, 2006. Check the license (California A70113, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Garrison Matthew Tong
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- A70113 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4733 W Sunset Blvd, Los Angeles, CA 90027
- Phone
- (323) 783-4011
- Enumerated
- Nov 13, 2006
- Record last updated
- Nov 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040830000807); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 1998
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Also registered at 4733 W Sunset Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Garrison Matthew Tong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A70113Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
601 Medicare Part D claims for 168 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Levothyroxine Sodium162 claims
- Methimazole112 claims
- Forteo33 claims
- Humalog22 claims
- Insulin Glargine-Yfgn20 claims
- Nano 2nd Gen Pen Needle20 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
- Southern California Permanente Medical GroupLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Garrison Matthew Tong among 1,131 endocrinology, diabetes & metabolism physician records in California
Garrison Matthew Tong, 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 54% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1998 · median 2003 among the 779 with a school on file
- Record last updated2021 · 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 Los Angeles → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Stuart Goldman, MDLos Angeles, CA 900271134290026
- Jill Silverman, MDLos Angeles, CA 900271730250614
- Simon Valencia, MDLos Angeles, CA 900281053476176
- Flor Geola, M.D.Los Angeles, CA 900251851485049
- Michael Richman, MDLos Angeles, CA 900251972554806
- Andrew DayLos Angeles, CA 900241336584515
- Deepashree Gupta, M.D.Los Angeles, CA 900241679773253
- Jeong-Hee Ku, M.D.Los Angeles, CA 900241033555164
Common questions
What is Garrison Matthew Tong, MD's NPI number?
Garrison Matthew Tong, MD's National Provider Identifier (NPI) is 1639240609, issued on Nov 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Garrison Matthew Tong, MD located?
The NPPES record lists a practice address at 4733 W Sunset Blvd, Los Angeles, CA, 90027. Phone: (323) 783-4011. Providers update this record themselves, so call before visiting.
How can I verify Garrison Matthew Tong, MD's license?
NPPES lists California license number A70113, 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 Garrison Matthew Tong, MD prescribe under Medicare Part D?
In 2024, Garrison Matthew Tong, MD had 601 Medicare Part D claims for 168 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.