NPPES file of Aug 9, 2026

Ingo O. Rencken, M.D.

Diagnostic Radiology Physician · Sebastopol, CA

Ingo O. Rencken, M.D. is a diagnostic radiology physician with a practice address in Sebastopol, California, and NPI 1265456776, issued on Jul 27, 2006. Check the license (California A56477, 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 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1265456776
Name
Ingo O. Rencken
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
A56477 CA
Self-reported in NPPES; status is on the state search
Practice location
501 Petaluma Ave, Sebastopol, CA 95472
Phone
(707) 829-4360
Enumerated
Jul 27, 2006
Record last updated
Apr 3, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(707) 829-4013
Medicaid ID
00A564770 CA
Medicare enrollment
Enrolled (PECOS I20040408001564); 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 501 Petaluma Ave

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

  1. Michele Borgeson, MDEmergency Medicine Physician1396700936
  2. Kathleen Coffey, OTOccupational Therapist1861041188
  3. Kathryn Farrar, RNFARegistered Nurse1922068048
  4. Jennifer Frendo, M.S. CCC-SLPSpeech-Language Pathologist1083111298
  5. Jorge Gonzalez, M.D.Emergency Medicine Physician1457575706
  6. Jill Johnson, RDRegistered Dietitian1548553548

Verify Ingo O. Rencken in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A56477
    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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The practice group's MIPS final score for 2023 (Medicare payment program): 95.9 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score86.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Modesto Radiological Medical Group IncSanta Rosa, CA

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

Ingo O. Rencken among 4,500 diagnostic radiology physician records in California

Ingo O. Rencken, M.D. is one of 4,500 diagnostic radiology physician records with a practice address in California. 74% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1984 · median 2004 among the 3,130 with a school on file
  • Record last updated2012 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in California

There are 4,500 diagnostic radiology physician records in California.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Daryl Chinn, M.D.Sonoma, CA 954761427097286
  2. Gary Ballard, MDUkiah, CA 954821902826860
  3. Jade L'Heureux, MDUkiah, CA 954821578704342
  4. Philip Tamanaha, M.D.Ukiah, CA 954821477697084
  5. Laura Winkle, M.D.Ukiah, CA 954821568506061
  6. Julie Moyers, MDWillits, CA 954901861653131
  7. Jonathan Travis, M.D.Willits, CA 954901467466482
  8. Lucille Perkins, M.D.Lakeport, CA 954531669486775

Common questions

What is Ingo O. Rencken, M.D.'s NPI number?

Ingo O. Rencken, M.D.'s National Provider Identifier (NPI) is 1265456776, issued on Jul 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ingo O. Rencken, M.D. located?

The NPPES record lists a practice address at 501 Petaluma Ave, Sebastopol, CA, 95472. Phone: (707) 829-4360. Providers update this record themselves, so call before visiting.

How can I verify Ingo O. Rencken, M.D.'s license?

NPPES lists California license number A56477, 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.

What is Ingo O. Rencken, M.D.'s MIPS final score?

The 2023 MIPS final score is 95.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.