NPPES file of Aug 9, 2026

Diana Davio, M.D.

Colon & Rectal Surgery Physician · Lancaster, CA

Diana Davio, M.D. is a colon & rectal surgery physician with a practice address in Lancaster, California, and NPI 1023217577, issued on Jul 15, 2007. Check the license (California A107611, 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
1023217577
Name
Diana Davio
Credential
M.D.
Primary taxonomy
Colon & Rectal Surgery Physician 208C00000X
License number
A107611 CA
Self-reported in NPPES; status is on the state search
Practice location
615 W Avenue L, Lancaster, CA 93534
Phone
(661) 723-2866
Enumerated
Jul 15, 2007
Record last updated
Jan 6, 2023
Medicare enrollment
Enrolled (PECOS I20100924000052); accepts Medicare assignment
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 615 W Avenue L

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

  1. Arad Abadi, MDVascular Surgery Physician1730673724
  2. Vanessa Balemagna, PHARMDPharmacist1073246294
  3. Jessica Barsegian, PHARM.D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1336517838
  4. Karla Basto-Herrera, PHARMDPharmacist1780150193
  5. John BiggsPhysical Therapist1639576101
  6. Juli Bolterman, RRTRegistered Respiratory Therapist1376021337

Verify Diana Davio in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A107611    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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41% fewer Medicare Part D claims than the average colon & rectal surgery physician in 2024

113 Medicare Part D claims for 63 beneficiaries, against an average of 192 among the 1,836 providers of this specialty who prescribed in Part D. 30 claims were for opioids.

  1. Diana Davio113
  2. Specialty average192

Most prescribed

  1. Hydrocodone-Acetaminophen30 claims
  2. Metronidazole20 claims
  3. Amoxicillin-Clavulanate Potass13 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

  1. Southern California Permanente Medical GroupPanorama City, CA

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

Colon & Rectal Surgery Physician providers in California

There are 198 colon & rectal surgery physician records in California.

All 198 in California → Every provider in Lancaster →

Other colon & rectal surgery physician records in California

  1. Kenneth Aaron, M.D.Newport Beach, CA1689809162
  2. Benjamin Abbadessa, M.D.San Diego, CA1255593612
  3. Michael Abel, M.D.San Francisco, CA1447253380
  4. Piyush Aggarwal, MDWalnut Creek, CA1700070273
  5. Allison Aka, MDLoma Linda, CA1891130100
  6. Gabriel Akopian, M.D.Pasadena, CA1326074535
  7. Ahmed Alkoraishi, MDHayward, CA1609954478
  8. Robert Allen, MDSanta Cruz, CA1871586610
  9. John Anane-Sefah, M.D.Capitola, CA1639227143
  10. George Angelos, M.D.Redding, CA1548410657

Common questions

What is Diana Davio, M.D.'s NPI number?

Diana Davio, M.D.'s National Provider Identifier (NPI) is 1023217577, issued on Jul 15, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Diana Davio, M.D. located?

The NPPES record lists a practice address at 615 W Avenue L, Lancaster, CA, 93534. Phone: (661) 723-2866. Providers update this record themselves, so call before visiting.

How can I verify Diana Davio, M.D.'s license?

NPPES lists California license number A107611, 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 Diana Davio, M.D. prescribe under Medicare Part D?

In 2024, Diana Davio, M.D. had 113 Medicare Part D claims for 63 beneficiaries; the average among colon & rectal surgery physician prescribers was 192. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.