Zachary David Karjala Anderson, DO, MS
Student in an Organized Health Care Education/Training Program · Santa Rosa, CA
Zachary David Karjala Anderson, DO, MS is a student in an organized health care education/training program with a practice address in Santa Rosa, California, and NPI 1629604699, issued on Mar 20, 2020. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Zachary David Karjala Anderson
- Credential
- DO, MS
- Primary taxonomy
- Student in an Organized Health Care Education/Training Program 390200000X
- Practice location
- 401 Bicentennial Way Ste 110, Santa Rosa, CA 95403
- Phone
- (707) 393-4000
- Enumerated
- Mar 20, 2020
- Record last updated
- Mar 20, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20230801003350); accepts Medicare assignment
- Medical or professional school
- Touro Un College Of Osteopathic Medicine, Vallejo, 2020
- Entity
- Type 1 · individual
8 nearest student in an organized health care education/training program records → All 40,652 in California → Look up another NPI →
Also registered at 401 Bicentennial Way Ste 110
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Megan ChangStudent in an Organized Health Care Education/Training Program1750093001
- Elia Cole, DO, MPHStudent in an Organized Health Care Education/Training Program1881198745
- Matthew Dean, B.A., B.S., A.A.Student in an Organized Health Care Education/Training Program1922800408
- Nancy Githere-Thande, DO, MPHStudent in an Organized Health Care Education/Training Program1003667742
- Kirsten Winnie, MDFamily Medicine Physician1902211451
Verify Zachary David Karjala Anderson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.6 times the Medicare Part D claims of the average student in an organized health care education/training program in 2024
1,215 Medicare Part D claims for 247 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D. 50 claims were for opioids.
Most prescribed
- Atorvastatin Calcium88 claims
- Trazodone Hcl57 claims
- Lisinopril49 claims
- Levothyroxine Sodium48 claims
- Sertraline Hcl42 claims
- Lisinopril-Hydrochlorothiazide34 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.
Bills Medicare through one group practice
- Permanente Medical Group IncSanta Rosa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Zachary David Karjala Anderson among 40,652 student in an organized health care education/training program records in California
Zachary David Karjala Anderson, DO, MS is one of 40,652 student in an organized health care education/training program records with a practice address in California. 16% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 24% of them.
- NPI issued2020 · 24% of these records are older, 72% newer
- In a Medicare fileYes · 16% of these records are
- In the CMS Doctors and Clinicians fileYes · 6% of these records are
- Graduated2020 · median 2017 among the 2,409 with a school on file
- Record last updated2020 · 26% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
124 student in an organized health care education/training program records list a practice address in Santa Rosa
They are 124 of the 6,884 NPPES records with a practice address in Santa Rosa, and 40,652 student in an organized health care education/training program records in California.
All 40,652 in California → Every provider in Santa Rosa → Student in an Organized Health Care Education/Training Program nationwide →
The 8 student in an organized health care education/training program records with the nearest ZIP codes
- Ishika Arora, DOSanta Rosa, CA 954031265991509
- Daniel Ayala-OrtizSanta Rosa, CA 954031578918744
- Elia Cole, DO, MPHSanta Rosa, CA 954031881198745
- Lauren GlaserSanta Rosa, CA 954031720575509
- Aleta GreenspanSanta Rosa, CA 954031538568027
- Calvin Hang, MD, PHDSanta Rosa, CA 954031578940573
- Kendall Madden, M.D.Santa Rosa, CA 954031013302066
- Monica O'Hanlon, M.D.Santa Rosa, CA 954031114314069
Common questions
What is Zachary David Karjala Anderson, DO, MS's NPI number?
Zachary David Karjala Anderson, DO, MS's National Provider Identifier (NPI) is 1629604699, issued on Mar 20, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Zachary David Karjala Anderson, DO, MS located?
The NPPES record lists a practice address at 401 Bicentennial Way Ste 110, Santa Rosa, CA, 95403. Phone: (707) 393-4000. Providers update this record themselves, so call before visiting.
How can I verify Zachary David Karjala Anderson, DO, MS's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Zachary David Karjala Anderson, DO, MS prescribe under Medicare Part D?
In 2024, Zachary David Karjala Anderson, DO, MS had 1,215 Medicare Part D claims for 247 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. 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.