NPPES file of Aug 9, 2026

David James Guist Dillon, MD, PHD

Emergency Medicine Physician · Sacramento, CA

David James Guist Dillon, MD, PHD is an emergency medicine physician with a practice address in Sacramento, California, and NPI 1043741028, issued on Mar 22, 2017. Check the license (California A159976, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1043741028
Name
David James Guist Dillon
Credential
MD, PHD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A159976 CA
Self-reported in NPPES; status is on the state search
Practice location
2315 Stockton Blvd, Sacramento, CA 95817
Phone
(916) 734-8568
Enumerated
Mar 22, 2017
Record last updated
Dec 1, 2022
Medicare enrollment
Enrolled (PECOS I20210611001566); 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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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.

  1. Erik Abrames, M.D.Diagnostic Radiology Physician1558342337
  2. Angel Acevedo Carrasco, PAPhysician Assistant1316523319
  3. Lyndsey Ackerman, NPPediatric Nurse Practitioner1619630464
  4. Jason Adams, M.D.Critical Care Medicine (Internal Medicine) Physician1134367568
  5. Sindhu Addepalli, MDInternal Medicine Physician1306405501
  6. Joseph Adducci, PA-CPhysician Assistant1023672342

Verify David James Guist Dillon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A159976    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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Bills Medicare through one group practice

  1. Regents OF The Univ OF CASacramento, CA

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

David James Guist Dillon among 7,751 emergency medicine physician records in California

David James Guist Dillon, MD, PHD 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 2017, is newer than 78% of them.

  • NPI issued2017 · 78% of these records are older, 19% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2017 · median 2011 among the 4,560 with a school on file
  • Record last updated2022 · 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

  1. Jodie Craig, M.D.Sacramento, CA 958171659354124
  2. Greg Hachigian, M.D.Sacramento, CA 958171558342022
  3. James Holmes, MD, MPHSacramento, CA 958171427033091
  4. James Kirk, MDSacramento, CA 958171598749848
  5. Nathan Kuppermann, M.D., M.P.H.Sacramento, CA 958171356322150
  6. James Lee, M.D.Sacramento, CA 958171730163510
  7. Kerry McMahon, MDSacramento, CA 958171235113549
  8. Robert Narverud, M.D.Sacramento, CA 958171457335754

Common questions

What is David James Guist Dillon, MD, PHD's NPI number?

David James Guist Dillon, MD, PHD's National Provider Identifier (NPI) is 1043741028, issued on Mar 22, 2017. An NPI identifies a provider in billing; it is not a license.

Where is David James Guist Dillon, MD, PHD located?

The NPPES record lists a practice address at 2315 Stockton Blvd, Sacramento, CA, 95817. Phone: (916) 734-8568. Providers update this record themselves, so call before visiting.

How can I verify David James Guist Dillon, MD, PHD's license?

NPPES lists California license number A159976, 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.

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.