NPPES file of Aug 9, 2026

Mark Todd Roback, DO

General Practice Physician · Fortuna, CA

Mark Todd Roback, DO is a general practice physician with a practice address in Fortuna, California, and NPI 1801969829, issued on Nov 16, 2006. Check the license (California 20A10324, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801969829
Name
Mark Todd Roback
Credential
DO
Primary taxonomy
General Practice Physician 208D00000X
License numbers
20A10324 CA
R1153 KY
Self-reported in NPPES; status is on the state search
Practice location
3304 Renner Dr, Fortuna, CA 95540
Phone
(707) 725-4477
Enumerated
Nov 16, 2006
Record last updated
Aug 25, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(707) 725-9209
Medicaid ID
7100028230 KY
Medicare enrollment
Enrolled (PECOS I20080731000716); 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 3304 Renner Dr

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

  1. Elaine Bettiga, FNPFamily Nurse Practitioner1902810252
  2. Joan Butler, MSN, FNP-C, PA-CNurse Practitioner1407866080
  3. Karen Chase, FNP RNNurse Practitioner1891729406
  4. Lori Cutler, FNPFamily Nurse Practitioner1336393776
  5. Brent Dawson, P.A.Physician Assistant1548566276
  6. Ronald Jones, M.D.Orthopaedic Surgery Physician1740370238

Verify Mark Todd Roback in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A10324
    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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83% fewer Medicare Part D claims than the average general practice physician in 2024

528 Medicare Part D claims for 227 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. 23 claims were for opioids.

  1. Mark Roback528
  2. Specialty average3,030

Most prescribed

  1. Prednisone42 claims
  2. Potassium Chloride33 claims
  3. Furosemide27 claims
  4. Levofloxacin25 claims
  5. Amoxicillin-Clavulanate Potass22 claims
  6. Atorvastatin Calcium21 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.

Industry payments in 2024: $138.91

2 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 4,259 providers of this specialty with any payment received $1,273.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Roback$138.91
  2. Specialty average$1,273.40

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Shasta Regional Medical Group IncRedding, CA

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

Mark Todd Roback among 1,956 general practice physician records in California

Mark Todd Roback, DO is one of 1,956 general practice physician records with a practice address in California. 48% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 66% newer
  • In a Medicare fileYes · 48% of these records are
  • In the CMS Doctors and Clinicians fileYes · 27% of these records are
  • Graduated2004 · median 1994 among the 520 with a school on file
  • Record last updated2014 · 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 208D00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

General Practice Physician providers in California

There are 1,956 general practice physician records in California.

The 8 general practice physician records with the nearest ZIP codes

  1. William Ta, M.D.Hoopa, CA 955461790955300
  2. Helena Vipond, M.D.Smith River, CA 955671023239191
  3. Frances Day, M.D.Eureka, CA 955011578623203
  4. Marcelle Mahan, M.D.Eureka, CA 955011245292085
  5. Lawrence Wieland, MDEureka, CA 955011104815380
  6. Tedd Dawson, MDWillits, CA 954901457330680
  7. Mark Vaughan, M.D.Auburn, CA 956021053303461
  8. Chris Boseovski, MDAuburn, CA 956031508940107

Common questions

What is Mark Todd Roback, DO's NPI number?

Mark Todd Roback, DO's National Provider Identifier (NPI) is 1801969829, issued on Nov 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Todd Roback, DO located?

The NPPES record lists a practice address at 3304 Renner Dr, Fortuna, CA, 95540. Phone: (707) 725-4477. Providers update this record themselves, so call before visiting.

How can I verify Mark Todd Roback, DO's license?

NPPES lists California license number 20A10324, 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 Mark Todd Roback, DO prescribe under Medicare Part D?

In 2024, Mark Todd Roback, DO had 528 Medicare Part D claims for 227 beneficiaries; the average among general practice physician prescribers was 3,030. Part D covers Medicare prescriptions 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. 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.