Garrett Gray Thiel, M.D.
Emergency Medicine Physician · Sacramento, CA
Garrett Gray Thiel, M.D. is an emergency medicine physician with a practice address in Sacramento, California, and NPI 1447646971, issued on Apr 10, 2015. Check the license (California A147328, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Garrett Gray Thiel
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A147328 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2315 Stockton Blvd, Sacramento, CA 95817
- Phone
- (916) 734-8570
- Enumerated
- Apr 10, 2015
- Record last updated
- Jul 3, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (916) 734-7950
- Medicare enrollment
- Enrolled (PECOS I20171127000848); accepts Medicare assignment
- Medical or professional school
- University Of Arkansas College Of Medicine, 2015
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 2315 Stockton Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Garrett Gray Thiel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A147328Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average emergency medicine physician in 2024
98 Medicare Part D claims for 80 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 21 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen19 claims
- Cephalexin14 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): 100 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: $27.88
1 payment: food and beverage; the largest payer was Abbvie Inc. The 12,335 providers of this specialty with any payment received $953.79 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
- South Coast Emergency Medical Group IncSanta Barbara, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Garrett Gray Thiel among 7,751 emergency medicine physician records in California
Garrett Gray Thiel, M.D. is one of 7,751 emergency 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 2015, is newer than 72% of them.
- NPI issued2015 · 72% of these records are older, 25% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2015 · median 2011 among the 4,560 with a school on file
- Record last updated2018 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
369 emergency medicine physician records list a practice address in Sacramento
They are 369 of the 33,083 NPPES records with a practice address in Sacramento, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Sacramento → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Jodie Craig, M.D.Sacramento, CA 958171659354124
- Greg Hachigian, M.D.Sacramento, CA 958171558342022
- James Holmes, MD, MPHSacramento, CA 958171427033091
- James Kirk, MDSacramento, CA 958171598749848
- Nathan Kuppermann, M.D., M.P.H.Sacramento, CA 958171356322150
- James Lee, M.D.Sacramento, CA 958171730163510
- Kerry McMahon, MDSacramento, CA 958171235113549
- Robert Narverud, M.D.Sacramento, CA 958171457335754
Common questions
What is Garrett Gray Thiel, M.D.'s NPI number?
Garrett Gray Thiel, M.D.'s National Provider Identifier (NPI) is 1447646971, issued on Apr 10, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Garrett Gray Thiel, M.D. located?
The NPPES record lists a practice address at 2315 Stockton Blvd, Sacramento, CA, 95817. Phone: (916) 734-8570. Providers update this record themselves, so call before visiting.
How can I verify Garrett Gray Thiel, M.D.'s license?
NPPES lists California license number A147328, 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 Garrett Gray Thiel, M.D. prescribe under Medicare Part D?
In 2024, Garrett Gray Thiel, M.D. had 98 Medicare Part D claims for 80 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Garrett Gray Thiel, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 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.