NPPES file of Aug 9, 2026

Ryszard Jerzy Chetkowski, M.D.

Reproductive Endocrinology Physician · Berkeley, CA

Ryszard Jerzy Chetkowski, M.D. is a reproductive endocrinology physician with a practice address in Berkeley, California, and NPI 1992883011, issued on Nov 2, 2006. Check the license (California G47258, as entered in NPPES) on the Medical Board of California; 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
1992883011
Name
Ryszard Jerzy Chetkowski
Credential
M.D.
Primary taxonomy
Reproductive Endocrinology Physician 207VE0102X
License number
G47258 CA
Self-reported in NPPES; status is on the state search
Practice location
2999 Regent St Ste 101-A, Berkeley, CA 94705
Phone
(510) 649-0440
Enumerated
Nov 2, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(510) 649-8700
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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Verify Ryszard Jerzy Chetkowski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G47258
    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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Reproductive Endocrinology Physician providers in California

There are 267 reproductive endocrinology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other reproductive endocrinology physician records in California

  1. Sina Abhari, MDNewport Beach, CA1073955290
  2. Mary Abusief, M.D.East Palo Alto, CA1639206733
  3. Brian Acacio, M.D.Laguna Niguel, CA1952313140
  4. Geoffrey Adamson, M.D.Mountain View, CA1780781690
  5. Jennifer Agard, M.D.Greenbrae, CA1003044553
  6. Sanjay Agarwal, M.D.La Jolla, CA1255489720
  7. Lusine Aghajanova, MDPalo Alto, CA1427315522
  8. Alin Akopians, M.D.Beverly Hills, CA1720306855
  9. Rene Allen, M.D.Santa Barbara, CA1265630602
  10. Ruben Alvero, MDPalo Alto, CA1861506917

Common questions

What is Ryszard Jerzy Chetkowski, M.D.'s NPI number?

Ryszard Jerzy Chetkowski, M.D.'s National Provider Identifier (NPI) is 1992883011, issued on Nov 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ryszard Jerzy Chetkowski, M.D. located?

The NPPES record lists a practice address at 2999 Regent St Ste 101-A, Berkeley, CA, 94705. Phone: (510) 649-0440. Providers update this record themselves, so call before visiting.

How can I verify Ryszard Jerzy Chetkowski, M.D.'s license?

NPPES lists California license number G47258, 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. 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.