NPPES file of Aug 9, 2026

John Callander

Student in an Organized Health Care Education/Training Program · Santa Rosa, CA

John Callander is a student in an organized health care education/training program with a practice address in Santa Rosa, California, and NPI 1215550801, issued on May 18, 2020. Check the license with the California board that licenses this profession; 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
1215550801
Name
John Callander
Primary taxonomy
Student in an Organized Health Care Education/Training Program 390200000X
Practice location
401 Bicentennial Way, Santa Rosa, CA 95403
Phone
(707) 393-4015
Enumerated
May 18, 2020
Record last updated
May 18, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20230725002012); accepts Medicare assignment
Medical or professional school
Tulane University School Of Medicine, 2020
Telehealth
Offers telehealth (CMS)
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 401 Bicentennial Way

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

  1. Anna Ackerman, RNRegistered Nurse1376409409
  2. Patricia AdamsPhysical Therapist1124971825
  3. Hugo Aguilar, PHARMDPharmacist1992389134
  4. Heather Aiello, OTR/LOccupational Therapist1851155022
  5. Sandra Akrawi, REGISTERED DIETITIANRegistered Dietitian1790821031
  6. Miguel Alcala, LCSWClinical Social Worker1629857891

Verify John Callander in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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
Find the California license search

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7.8 times the Medicare Part D claims of the average student in an organized health care education/training program in 2024

1,436 Medicare Part D claims for 317 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D. 35 claims were for opioids.

  1. John Callander1,436
  2. Specialty average185

Most prescribed

  1. Atorvastatin Calcium87 claims
  2. Amlodipine Besylate61 claims
  3. Gabapentin53 claims
  4. Lisinopril52 claims
  5. Losartan Potassium49 claims
  6. Levothyroxine Sodium45 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

  1. Permanente Medical Group IncSan Francisco, CA

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

John Callander among 40,652 student in an organized health care education/training program records in California

John Callander 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.

The 8 student in an organized health care education/training program records with the nearest ZIP codes

  1. Ishika Arora, DOSanta Rosa, CA 954031265991509
  2. Daniel Ayala-OrtizSanta Rosa, CA 954031578918744
  3. Elia Cole, DO, MPHSanta Rosa, CA 954031881198745
  4. Lauren GlaserSanta Rosa, CA 954031720575509
  5. Aleta GreenspanSanta Rosa, CA 954031538568027
  6. Calvin Hang, MD, PHDSanta Rosa, CA 954031578940573
  7. Kendall Madden, M.D.Santa Rosa, CA 954031013302066
  8. Monica O'Hanlon, M.D.Santa Rosa, CA 954031114314069

Common questions

What is John Callander's NPI number?

John Callander's National Provider Identifier (NPI) is 1215550801, issued on May 18, 2020. An NPI identifies a provider in billing; it is not a license.

Where is John Callander located?

The NPPES record lists a practice address at 401 Bicentennial Way, Santa Rosa, CA, 95403. Phone: (707) 393-4015. Providers update this record themselves, so call before visiting.

How can I verify John Callander's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does John Callander prescribe under Medicare Part D?

In 2024, John Callander had 1,436 Medicare Part D claims for 317 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.