NPPES file of Aug 9, 2026

Ian Christopher Hopper, DO

Pediatrics Physician · Petaluma, CA

Ian Christopher Hopper, DO is a pediatrics physician with a practice address in Petaluma, California, and NPI 1396206587, issued on Mar 29, 2019. Check the license (California 20A19517, 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
1396206587
Name
Ian Christopher Hopper
Credential
DO
Primary taxonomy
Pediatrics Physician 208000000X
License numbers
20A19517 CA
125.074943 IL
Self-reported in NPPES; status is on the state search
Practice location
1179 N Mcdowell Blvd, Petaluma, CA 94954
Phone
(707) 559-7500
Enumerated
Mar 29, 2019
Record last updated
Aug 10, 2022
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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Also registered at 1179 N Mcdowell Blvd

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

  1. Amy Adams, M.D.Emergency Medicine Physician1700976610
  2. Theresa Aguilar, MD, MPHFamily Medicine Physician1205343944
  3. Andrea Akabike, DDSPediatric Dentistry1912512492
  4. Andrew Ashcroft, M.D.Family Medicine Physician1053306795
  5. Miriam Avena-Mascareno, FNP-CFamily Nurse Practitioner1629797246
  6. Yasaman AyatAcupuncturist1174239032

Verify Ian Christopher Hopper in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A19517
    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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Ian Christopher Hopper among 9,272 pediatrics physician records in California

Ian Christopher Hopper, DO is one of 9,272 pediatrics physician records with a practice address in California. 31% 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 2019, is newer than 89% of them.

  • NPI issued2019 · 89% of these records are older, 9% newer
  • In a Medicare fileNo · 31% of these records are
  • In the CMS Doctors and Clinicians fileNo · 8% of these records are
  • Record last updated2022 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatrics Physician providers in California

There are 9,272 pediatrics physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 pediatrics physician records with the nearest ZIP codes

  1. Janet Coyne, MDPetaluma, CA 949541710061700
  2. Martha Cueto-Salas, MDPetaluma, CA 949541538277140
  3. John Dahmen, MDPetaluma, CA 949541851475842
  4. Armando Depala, MDPetaluma, CA 949541912938085
  5. Laurie Doolittle, MDPetaluma, CA 949541740364710
  6. Carol Ekelund, MDPetaluma, CA 949541407930480
  7. Donald Hensley, MDPetaluma, CA 949541184708166
  8. Lindsey Hibbard, M.D.Petaluma, CA 949541144418120

Common questions

What is Ian Christopher Hopper, DO's NPI number?

Ian Christopher Hopper, DO's National Provider Identifier (NPI) is 1396206587, issued on Mar 29, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Ian Christopher Hopper, DO located?

The NPPES record lists a practice address at 1179 N Mcdowell Blvd, Petaluma, CA, 94954. Phone: (707) 559-7500. Providers update this record themselves, so call before visiting.

How can I verify Ian Christopher Hopper, DO's license?

NPPES lists California license number 20A19517, 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.