NPPES file of Aug 9, 2026

John Arthur Rochat, M.D.

Hematology & Oncology Physician · Fort Bragg, CA

John Arthur Rochat, M.D. is a hematology & oncology physician with a practice address in Fort Bragg, California, and NPI 1770508616, issued on Jul 13, 2006. Check the license (California A054024, 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 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1770508616
Name
John Arthur Rochat
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
A054024 CA
Self-reported in NPPES; status is on the state search
Practice location
700 River Dr, Fort Bragg, CA 95437
Phone
(707) 961-4922
Enumerated
Jul 13, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(707) 961-4900
Medicare enrollment
Enrolled (PECOS I20060807000345); 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 700 River Dr

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

  1. Phillip Conwell, CRNARegistered Nurse1255540340
  2. Prakash Devaskar, MDPediatrics Physician1912079294
  3. Masyn Enright, DOFamily Medicine Physician1184387201
  4. Kunal GoelInternal Medicine Physician1619610714
  5. Charles Jenkins, MDSurgery Physician1205928660
  6. Michael Kent, PHARMDPharmacist1073186920

Verify John Arthur Rochat in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A054024
    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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3.1 times the Medicare Part D claims of the average hematology & oncology physician in 2024

2,737 Medicare Part D claims for 217 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 130 claims were for opioids.

  1. John Rochat2,737
  2. Specialty average877

Most prescribed

  1. Atorvastatin Calcium159 claims
  2. Levothyroxine Sodium99 claims
  3. Losartan Potassium95 claims
  4. Lisinopril84 claims
  5. Hydrocodone-Acetaminophen73 claims
  6. Bupropion Xl72 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 73.8 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 score76.9
  2. Costout of 100 · 30%36.9
  3. Promoting interoperabilityout of 100 · 25%92.0
  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. Anderson Valley Health CenterBoonville, CA

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

John Arthur Rochat among 1,583 hematology & oncology physician records in California

John Arthur Rochat, M.D. is one of 1,583 hematology & oncology physician records with a practice address in California. 83% 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 8% of them.

  • NPI issued2006 · 8% of these records are older, 54% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated1990 · median 2003 among the 1,124 with a school on file
  • Record last updated2007 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in California

There are 1,583 hematology & oncology physician records in California.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Mark Turrill, M.D.Lakeport, CA 954531568542314
  2. Marek Bozdech, M.D.Santa Rosa, CA 954051679590509
  3. Helen Collins, M.D.Santa Rosa, CA 954051326060617
  4. Nicolaj Andersen, MDSanta Rosa, CA 954031659455640
  5. Ian Anderson, M.D.Santa Rosa, CA 954031518055573
  6. Peter Brett, M.D.Santa Rosa, CA 954031487743472
  7. Justin Grenet, MDSanta Rosa, CA 954031770102915
  8. Jarrod Holmes, MDSanta Rosa, CA 954031013018035

Common questions

What is John Arthur Rochat, M.D.'s NPI number?

John Arthur Rochat, M.D.'s National Provider Identifier (NPI) is 1770508616, issued on Jul 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Arthur Rochat, M.D. located?

The NPPES record lists a practice address at 700 River Dr, Fort Bragg, CA, 95437. Phone: (707) 961-4922. Providers update this record themselves, so call before visiting.

How can I verify John Arthur Rochat, M.D.'s license?

NPPES lists California license number A054024, 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 John Arthur Rochat, M.D. prescribe under Medicare Part D?

In 2024, John Arthur Rochat, M.D. had 2,737 Medicare Part D claims for 217 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is John Arthur Rochat, M.D.'s MIPS final score?

The 2023 MIPS final score is 73.8 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.