NPPES file of Aug 9, 2026

Anna Baillie Dekay

Emergency Medicine Physician · San Diego, CA

Anna Baillie Dekay is an emergency medicine physician with a practice address in San Diego, California, and NPI 1164041539, issued on Apr 15, 2020. Check the license (California A187253, 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
1164041539
Name
Anna Baillie Dekay
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A187253 CA
Self-reported in NPPES; status is on the state search
Practice location
200 W Arbor Dr # MC8676, San Diego, CA 92103
Phone
(619) 543-6213
Enumerated
Apr 15, 2020
Record last updated
Oct 31, 2025
Medicare enrollment
Enrolled (PECOS I20240730000995); 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 200 W Arbor Dr # MC8676

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

  1. Nicholas Aldridge, M.D., M.P.H.Emergency Medicine Physician1700293214
  2. Sarah AlzaabiStudent in an Organized Health Care Education/Training Program1245081116
  3. Kaighley Brett, MDFamily Medicine Physician1841711090
  4. Bill Chan, MDEmergency Medicine Physician1255073706
  5. Juan Day, MDStudent in an Organized Health Care Education/Training Program1699577114
  6. Jake Del Rosso, MDGeneral Practice Physician1225597271

Verify Anna Baillie Dekay in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A187253    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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19% fewer Medicare Part D claims than the average emergency medicine physician in 2024

182 Medicare Part D claims for 117 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 18 claims were for opioids.

  1. Anna Dekay182
  2. Specialty average226

Most prescribed

  1. Cefpodoxime Proxetil24 claims
  2. Cephalexin17 claims
  3. Hydrocodone-Acetaminophen13 claims
  4. Ondansetron Hcl11 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. San Diego Emergency Physicians IncSan Diego, CA

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

Emergency Medicine Physician providers in California

There are 7,751 emergency medicine physician records in California.

All 7,751 in California → Every provider in San Diego →

Other emergency medicine physician records in California

  1. Cooper Aakhus, MDStanford, CA1194351007
  2. Pyra Aarden, MDMartinez, CA1417058199
  3. Neal Aaron, D.O.Encinitas, CA1114283520
  4. Eric AaserudeWalnut Creek, CA1811491194
  5. Nader Abas, MDBarstow, CA1346288305
  6. Michael Abbo, MDNovato, CA1205819042
  7. Daniel Abbott, MDFullerton, CA1518907864
  8. Paul-Andre Abboud, M.D.Oakland, CA1710065503
  9. Mostafa Abdel-Hamid, MDStanford, CA1457918740
  10. Ashraf Abdel-KerimChino, CA1396961538

Common questions

What is Anna Baillie Dekay's NPI number?

Anna Baillie Dekay's National Provider Identifier (NPI) is 1164041539, issued on Apr 15, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Anna Baillie Dekay located?

The NPPES record lists a practice address at 200 W Arbor Dr # MC8676, San Diego, CA, 92103. Phone: (619) 543-6213. Providers update this record themselves, so call before visiting.

How can I verify Anna Baillie Dekay's license?

NPPES lists California license number A187253, 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 Anna Baillie Dekay prescribe under Medicare Part D?

In 2024, Anna Baillie Dekay had 182 Medicare Part D claims for 117 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.