NPPES file of Aug 9, 2026

Dian Forrester Koelzer, FNP

Family Nurse Practitioner · Folsom, CA

Dian Forrester Koelzer, FNP is a family nurse practitioner with a practice address in Folsom, California, and NPI 1609979772, issued on Sep 6, 2006. Check the license (California 499424, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1609979772
Name
Dian Forrester Koelzer
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
499424 CA
Self-reported in NPPES; status is on the state search
Practice location
2155 Iron Point RD, Folsom, CA 95630
Phone
(916) 817-5659
Enumerated
Sep 6, 2006
Record last updated
Jul 11, 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 family nurse practitioner records → All 16,966 in California → Look up another NPI →

Also registered at 2155 Iron Point RD

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

  1. Pragyan Adhikari, MDInternal Medicine Physician1447836432
  2. Anjani Amladi-Gomez, MDPsychiatry Physician1659765576
  3. Rose Arellanes, M.D.Family Medicine Physician1902889512
  4. Anisul Aslam, MDInternal Medicine Physician1356413165
  5. Rita Azzam Caso, D.O.Adult Medicine Physician1518022219
  6. Sukhkarn Bains, MDInternal Medicine Physician1598128225

Verify Dian Forrester Koelzer 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 499424    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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Dian Forrester Koelzer among 16,966 family nurse practitioner records in California

Dian Forrester Koelzer, FNP is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 1% of them.

  • NPI issued2006 · 1% of these records are older, 93% newer
  • In a Medicare fileNo · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 40% of these records are
  • Record last updated2007 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

54 family nurse practitioner records list a practice address in Folsom

They are 54 of the 1,811 NPPES records with a practice address in Folsom, and 16,966 family nurse practitioner records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 16,966 in California → Every provider in Folsom → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Paula Bertram, NPFolsom, CA 956301215035373
  2. Patricia Blaylock, FNPFolsom, CA 956301649480526
  3. Rebekah Gilpin, RN FAMILY NURSE PRACFolsom, CA 956301790775849
  4. Devin Harris, MS, FNPFolsom, CA 956301376532010
  5. Julie Jennings, RN, FNPFolsom, CA 956301497838437
  6. Julia Korsunsky, NPFolsom, CA 956301164605762
  7. Barbara Leary, F.N.P., P.A.Folsom, CA 956301720069289
  8. Ann Lee, FNPFolsom, CA 956301396834578

Common questions

What is Dian Forrester Koelzer, FNP's NPI number?

Dian Forrester Koelzer, FNP's National Provider Identifier (NPI) is 1609979772, issued on Sep 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Dian Forrester Koelzer, FNP located?

The NPPES record lists a practice address at 2155 Iron Point RD, Folsom, CA, 95630. Phone: (916) 817-5659. Providers update this record themselves, so call before visiting.

How can I verify Dian Forrester Koelzer, FNP's license?

NPPES lists California license number 499424, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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. 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.