NPPES file of Aug 9, 2026

Guy Richard Bennallack, DO

Family Medicine Physician · Santa Maria, CA

Guy Richard Bennallack, DO is a family medicine physician with a practice address in Santa Maria, California, and NPI 1245610344, issued on Jun 3, 2015. Check the license (California 20A15415, 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
1245610344
Name
Guy Richard Bennallack
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
20A15415 CA
S3795 TX
Self-reported in NPPES; status is on the state search
Practice location
1400 E Church St Bldg 8, Santa Maria, CA 93454
Phone
(805) 739-3561
Enumerated
Jun 3, 2015
Record last updated
Mar 23, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200401000984); accepts Medicare assignment
Medical or professional school
Touro Un College Of Osteopathic Medicine, Vallejo, 2015
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 1400 E Church St Bldg 8

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

  1. Murat Akalin, M.D.Family Medicine Physician1881819670
  2. Denise Allen, D.O.Family Medicine Physician1972631950
  3. Julian Bandura, DOStudent in an Organized Health Care Education/Training Program1265922538
  4. Baochuong Le, DOStudent in an Organized Health Care Education/Training Program1770073850
  5. Heidi Millard, MDFamily Medicine Physician1871889667

Verify Guy Richard Bennallack in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A15415
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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88% fewer Medicare Part D claims than the average family medicine physician in 2024

439 Medicare Part D claims for 287 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Guy Bennallack439
  2. Specialty average3,544

Most prescribed

  1. Cyclobenzaprine Hcl58 claims
  2. Cefpodoxime Proxetil46 claims
  3. Ondansetron Odt46 claims
  4. Ketorolac Tromethamine29 claims
  5. Ibuprofen22 claims
  6. Azithromycin21 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 3 group practices

  1. Hawaii Emergency Physicians Associated IncHonokaa, HI
  2. Pearsall Emergency Medicine Associates, PAEl Paso, TX
  3. Santa Ynez River Physicians PCLompoc, CA

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

79 family medicine physician records list a practice address in Santa Maria

They are 79 of the 3,047 NPPES records with a practice address in Santa Maria, and 17,133 family medicine physician records in California.

Other family medicine physician records in California

  1. Omer Aba-Omer, MDSanta Monica, CA1649702093
  2. Michelle Ababa, MDWilmington, CA1710922513
  3. Anna Tzeitel Abalos, MDRoseville, CA1720200017
  4. Adan Abarca, MDAnaheim, CA1760553689
  5. Vanessa Abarca, DOVentura, CA1952040859
  6. Lorraine Abate, M.D.Sacramento, CA1104840008
  7. Robert Abatecola, MDCastro Valley, CA1669551719
  8. Romeo Abaya, M.D.Cottonwood, CA1598053506
  9. Effiem Abbah, MD, MPHSan Francisco, CA1821185133
  10. Khuzeman Abbasi, MDSanta Rosa, CA1841979952

Common questions

What is Guy Richard Bennallack, DO's NPI number?

Guy Richard Bennallack, DO's National Provider Identifier (NPI) is 1245610344, issued on Jun 3, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Guy Richard Bennallack, DO located?

The NPPES record lists a practice address at 1400 E Church St Bldg 8, Santa Maria, CA, 93454. Phone: (805) 739-3561. Providers update this record themselves, so call before visiting.

How can I verify Guy Richard Bennallack, DO's license?

NPPES lists California license number 20A15415, 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 Guy Richard Bennallack, DO prescribe under Medicare Part D?

In 2024, Guy Richard Bennallack, DO had 439 Medicare Part D claims for 287 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.