NPPES file of Aug 9, 2026

Glenn Donald Garbutt, M.D.

Nephrology Physician · Fresno, CA

Glenn Donald Garbutt, M.D. is a nephrology physician with a practice address in Fresno, California, and NPI 1063513737, issued on Sep 26, 2006. Check the license (California G13844, as entered in NPPES) 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1063513737
Name
Glenn Donald Garbutt
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
G13844 CA
Self-reported in NPPES; status is on the state search
Practice location
1191 E Herndon Ave Ste 102, Fresno, CA 93720
Phone
(559) 448-8481
Enumerated
Sep 26, 2006
Record last updated
Mar 11, 2025
Fax
(559) 448-0996
Medicaid ID
00G138440 CA
Medicare enrollment
Enrolled (PECOS I20090113000415); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 1966
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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Also registered at 1191 E Herndon Ave Ste 102

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mohammad Sheikh, MDInternal Medicine Physician1770146011

Verify Glenn Donald Garbutt in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G13844
    Check 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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32% fewer Medicare Part D claims than the average nephrology physician in 2024

989 Medicare Part D claims for 105 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.

  1. Glenn Garbutt989
  2. Specialty average1,465

Most prescribed

  1. Farxiga114 claims
  2. Prosol89 claims
  3. Furosemide77 claims
  4. Velphoro56 claims
  5. Pioglitazone Hcl53 claims
  6. Clinisol48 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: $771.00

36 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Glenn Garbutt$771.00
  2. Specialty average$3,091.37

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Glenn Donald Garbutt among 1,468 nephrology physician records in California

Glenn Donald Garbutt, M.D. is one of 1,468 nephrology physician records with a practice address in California. 88% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 48% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated1966 · median 2001 among the 1,128 with a school on file
  • Record last updated2025 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in California

There are 1,468 nephrology physician records in California.

The 8 nephrology physician records with the nearest ZIP codes

  1. Yangming Cao, MDFresno, CA 937201558339630
  2. Harpreet DhindsaFresno, CA 937201801864020
  3. Hemant DhingraFresno, CA 937201487672192
  4. Joseph Duflot, MDFresno, CA 937201467420679
  5. Mei-Tsuey Hwang, MDFresno, CA 937201184771974
  6. Steven Levy, MDFresno, CA 937201487623427
  7. Andre Minuth, MDFresno, CA 937201689791147
  8. Pankaj Ram, MDFresno, CA 937201679539837

Common questions

What is Glenn Donald Garbutt, M.D.'s NPI number?

Glenn Donald Garbutt, M.D.'s National Provider Identifier (NPI) is 1063513737, issued on Sep 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Glenn Donald Garbutt, M.D. located?

The NPPES record lists a practice address at 1191 E Herndon Ave Ste 102, Fresno, CA, 93720. Phone: (559) 448-8481. Providers update this record themselves, so call before visiting.

How can I verify Glenn Donald Garbutt, M.D.'s license?

NPPES lists California license number G13844, 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 Glenn Donald Garbutt, M.D. prescribe under Medicare Part D?

In 2024, Glenn Donald Garbutt, M.D. had 989 Medicare Part D claims for 105 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.