NPPES file of Aug 9, 2026

Garry P. Dieter, MD

Anesthesiology Physician · Los Angeles, CA

Garry P. Dieter, MD is an anesthesiology physician with a practice address in Los Angeles, California, and NPI 1811920002, issued on Jul 9, 2006. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811920002
Name
Garry P. Dieter
Credential
MD
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
9767 MT
Self-reported in NPPES; status is on the state search
Practice location
Ucla Dept Anesthesiology And Periop Medicine, Los Angeles, CA 90095
Phone
(310) 267-8653
Enumerated
Jul 9, 2006
Record last updated
Sep 8, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid IDs
0043771 MT
8409377 WA
806528000 ID
0080240 MT
Medicare enrollment
Enrolled (PECOS I20140410001640); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 1997
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Garry P. Dieter in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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The practice group's MIPS final score for 2023 (Medicare payment program): 93.5 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.

  1. Qualityout of 100 · 30% of the final score88.2
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Providence Health And Service- WashingtonSpokane, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Garry P. Dieter among 7,571 anesthesiology physician records in California

Garry P. Dieter, MD is one of 7,571 anesthesiology physician records with a practice address in California. 71% 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, 53% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated1997 · median 2006 among the 4,868 with a school on file
  • Record last updated2021 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anesthesiology Physician providers in California

There are 7,571 anesthesiology physician records in California.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Cynthia Antin, MDLos Angeles, CA 900951467491365
  2. Ihab Ayad, MDLos Angeles, CA 900951699714543
  3. Judith Brill, MDLos Angeles, CA 900951134168040
  4. Kwok Chan, MDLos Angeles, CA 900951528033545
  5. Daniel Cole, M.D.Los Angeles, CA 900951285618157
  6. Jeanette Derdemezi, MDLos Angeles, CA 900951881643534
  7. Jonathan Ho, MDLos Angeles, CA 900951053369397
  8. Joe Hong, MDLos Angeles, CA 900951972551356

Common questions

What is Garry P. Dieter, MD's NPI number?

Garry P. Dieter, MD's National Provider Identifier (NPI) is 1811920002, issued on Jul 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Garry P. Dieter, MD located?

The NPPES record lists a practice address at Ucla Dept Anesthesiology And Periop Medicine, Los Angeles, CA, 90095. Phone: (310) 267-8653. Providers update this record themselves, so call before visiting.

How can I verify Garry P. Dieter, MD's license?

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.

What is Garry P. Dieter, MD's MIPS final score?

The 2023 MIPS final score is 93.5 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.