NPPES file of Aug 9, 2026

Frederick L. Kronen, MD

Emergency Medicine Physician · Santa Rosa, CA

Frederick L. Kronen, MD is an emergency medicine physician with a practice address in Santa Rosa, California, and NPI 1093758617, issued on Jun 13, 2006. Check the license (California G51036, 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
1093758617
Name
Frederick L. Kronen
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
G51036 CA
Self-reported in NPPES; status is on the state search
Practice location
3883 Airway Dr Ste 120, Santa Rosa, CA 95403
Phone
(707) 521-4495
Enumerated
Jun 13, 2006
Record last updated
Nov 2, 2023
Fax
(707) 573-5421
Medicaid IDs
00G510340 CA
419681 AZ
Medicare enrollment
Enrolled (PECOS I20061002000630); accepts Medicare assignment
Medical or professional school
University Of California, San Diego School Of Medicine, 1982
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 3883 Airway Dr Ste 120

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

  1. Tucker Bierbaum, M.D.Emergency Medicine Physician1841234408
  2. Morton Brewer, M.D.Pediatrics Physician1548299266
  3. Crystal Cox, PAPhysician Assistant1811195100
  4. Shawn Franklin, MDEmergency Medicine Physician1669422507
  5. Andrea Ibbison, CRNANurse Practitioner1932393584
  6. Patrick McAlpinNurse Practitioner1265262752

Verify Frederick L. Kronen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G51036
    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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46% fewer Medicare Part D claims than the average emergency medicine physician in 2024

123 Medicare Part D claims for 81 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Frederick Kronen123
  2. Specialty average226

Most prescribed

  1. Prednisone30 claims
  2. Cephalexin20 claims
  3. Azithromycin11 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 2 group practices

  1. San Francisco Emergency Medical AssociatesLakeport, CA
  2. Sutter Bay Medical FoundationSanta Rosa, CA

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

Frederick L. Kronen among 7,751 emergency medicine physician records in California

Frederick L. Kronen, MD 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 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 60% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated1982 · median 2011 among the 4,560 with a school on file
  • Record last updated2023 · 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).

Emergency Medicine Physician providers in California

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

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Tucker Bierbaum, M.D.Santa Rosa, CA 954031841234408
  2. Cyrus Colbert, MDSanta Rosa, CA 954031073697140
  3. Robert Duchynski, MDSanta Rosa, CA 954031538243522
  4. Eberle Ewing, MDSanta Rosa, CA 954031629152798
  5. Shawn Franklin, MDSanta Rosa, CA 954031669422507
  6. Stephen Fuette, MDSanta Rosa, CA 954031497840664
  7. Robert Galbraith, MDSanta Rosa, CA 954031194809160
  8. Tinh Hua, DOSanta Rosa, CA 954031871561100

Common questions

What is Frederick L. Kronen, MD's NPI number?

Frederick L. Kronen, MD's National Provider Identifier (NPI) is 1093758617, issued on Jun 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Frederick L. Kronen, MD located?

The NPPES record lists a practice address at 3883 Airway Dr Ste 120, Santa Rosa, CA, 95403. Phone: (707) 521-4495. Providers update this record themselves, so call before visiting.

How can I verify Frederick L. Kronen, MD's license?

NPPES lists California license number G51036, 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 Frederick L. Kronen, MD prescribe under Medicare Part D?

In 2024, Frederick L. Kronen, MD had 123 Medicare Part D claims for 81 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.

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.