NPPES file of Aug 9, 2026

Bjorn Carl Johan Eek, M.D.

Specialist · Daly City, CA

Bjorn Carl Johan Eek, M.D. is a specialist with a practice address in Daly City, California, and NPI 1184744500, issued on Mar 30, 2007. Check the license (California A23077, as entered in NPPES) with the California board that licenses this profession; 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
1184744500
Name
Bjorn Carl Johan Eek
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
A23077 CA
Self-reported in NPPES; status is on the state search
Practice location
901 Campus Drive, Daly City, CA 94015
Phone
(650) 755-0733
Enumerated
Mar 30, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest specialist records → All 5,749 in California → Look up another NPI →

Also registered at 901 Campus Drive

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

  1. Yi Chiang, DOAnesthesiology Physician1295830958
  2. Charles Conley, DMDDentist1407061617
  3. Richard Derby, MDPain Medicine (Anesthesiology) Physician1013008481
  4. Brian Fitch, MDAnesthesiology Physician1780692095
  5. Dianne Gee, CPNPLegal Medicine1457451569
  6. Charles Gilmartin, CRNACertified Registered Nurse Anesthetist1588728786

Verify Bjorn Carl Johan Eek in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license A23077    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
Find the California license search

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99% fewer Medicare Part D claims than the average specialist in 2024

14 Medicare Part D claims, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.

  1. Bjorn Eek14
  2. Specialty average1,380

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.

Bjorn Carl Johan Eek among 5,749 specialist records in California

Bjorn Carl Johan Eek, M.D. is one of 5,749 specialist records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 40% of them.

  • NPI issued2007 · 40% of these records are older, 44% newer
  • In a Medicare fileYes · 30% of these records are
  • In the CMS Doctors and Clinicians fileNo · 19% of these records are
  • Record last updated2007 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Specialist providers in California

There are 5,749 specialist records in California.

All 5,749 in California → Every provider in Daly City → Specialist nationwide →

The 8 specialist records with the nearest ZIP codes

  1. Jacquelyn BanouvongDaly City, CA 940151851036073
  2. Mary Brzostowicz, M.D.Daly City, CA 940151487683819
  3. Cynthia Carsolin-Chang, M.D.Daly City, CA 940151235160409
  4. Richard Fernandez, MDDaly City, CA 940151265541346
  5. Dennis Hamby, M.D.Daly City, CA 940151922099415
  6. James Rumack, M.D.Daly City, CA 940151326076282
  7. Gerald SuarezSan Francisco, CA 940151629588272
  8. Vincent DelgadoDaly City, CA 940141730067216

Common questions

What is Bjorn Carl Johan Eek, M.D.'s NPI number?

Bjorn Carl Johan Eek, M.D.'s National Provider Identifier (NPI) is 1184744500, issued on Mar 30, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Bjorn Carl Johan Eek, M.D. located?

The NPPES record lists a practice address at 901 Campus Drive, Daly City, CA, 94015. Phone: (650) 755-0733. Providers update this record themselves, so call before visiting.

How can I verify Bjorn Carl Johan Eek, M.D.'s license?

NPPES lists California license number A23077, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Bjorn Carl Johan Eek, M.D. prescribe under Medicare Part D?

In 2024, Bjorn Carl Johan Eek, M.D. had 14 Medicare Part D claims; the average among specialist prescribers was 1,380. 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.