NPPES file of Aug 9, 2026

Marja-Liisa Magnuson

Sports Medicine (Family Medicine) Physician · Monterey, CA

Marja-Liisa Magnuson is a sports medicine (family medicine) physician with a practice address in Monterey, California, and NPI 1447791876, issued on Mar 18, 2017. Check the license (California 20A18721, 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
1447791876
Name
Marja-Liisa Magnuson
Primary taxonomy
Sports Medicine (Family Medicine) Physician 207QS0010X
License numbers
20A18721 CA
18721 CA
Self-reported in NPPES; status is on the state search
Practice location
2 Upper Ragsdale Dr Bldg A, Monterey, CA 93940
Phone
(831) 333-3040
Enumerated
Mar 18, 2017
Record last updated
May 17, 2024
Medicare enrollment
Enrolled (PECOS I20230424000569); accepts Medicare assignment
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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8 nearest sports medicine (family medicine) physician records → All 266 in California → Look up another NPI →

Also registered at 2 Upper Ragsdale Dr Bldg A

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

  1. Omar AbdallaFamily Medicine Physician1770220378
  2. Oluwafunmilola AdekanmbiNeurology Physician1578051231
  3. Nupur Aggarwal, MDInternal Medicine Physician1164680336
  4. Antonette Ajayi, MDPulmonary Disease Physician1225456643
  5. Lancelot Alexander, MDNeurology Physician1841215290
  6. Angelfrey Armas Ruiz, MDFamily Medicine Physician1295298487

Verify Marja-Liisa Magnuson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A18721    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

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2.3 times the Medicare Part D claims of the average sports medicine (family medicine) physician in 2024

1,998 Medicare Part D claims for 293 beneficiaries, against an average of 855 among the 2,237 providers of this specialty who prescribed in Part D. 46 claims were for opioids.

  1. Marja-Liisa Magnuson1,998
  2. Specialty average855

Most prescribed

  1. Atorvastatin Calcium122 claims
  2. Lisinopril111 claims
  3. Amlodipine Besylate97 claims
  4. Levothyroxine Sodium95 claims
  5. Rosuvastatin Calcium80 claims
  6. Losartan Potassium73 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. Montage Medical GroupMonterey, CA

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

Marja-Liisa Magnuson among 266 sports medicine (family medicine) physician records in California

Marja-Liisa Magnuson is one of 266 sports medicine (family medicine) physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 72% of them.

  • NPI issued2017 · 72% of these records are older, 24% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2020 · median 2012 among the 190 with a school on file
  • Record last updated2024 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QS0010X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Sports Medicine (Family Medicine) Physician providers in California

There are 266 sports medicine (family medicine) physician records in California.

All 266 in California → Every provider in Monterey → Sports Medicine (Family Medicine) Physician nationwide →

The 8 sports medicine (family medicine) physician records with the nearest ZIP codes

  1. Yatin Dhir, DOMonterey, CA 939401134626187
  2. Charlie Michaudet, MDMenlo Park, CA 940251770802647
  3. Marisa Jayakar, MDMountain View, CA 940411083142582
  4. Richard Ellis, D.O.Redwood City, CA 940631386702140
  5. Robert Kiningham, MDRedwood City, CA 940651346338456
  6. David Li, D.O.Sunnyvale, CA 940851861750507
  7. Neesheet Parikh, D.O.Sunnyvale, CA 940851699006569
  8. Ahmed Khan, M.D.San Francisco, CA 941051497018410

Common questions

What is Marja-Liisa Magnuson's NPI number?

Marja-Liisa Magnuson's National Provider Identifier (NPI) is 1447791876, issued on Mar 18, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Marja-Liisa Magnuson located?

The NPPES record lists a practice address at 2 Upper Ragsdale Dr Bldg A, Monterey, CA, 93940. Phone: (831) 333-3040. Providers update this record themselves, so call before visiting.

How can I verify Marja-Liisa Magnuson's license?

NPPES lists California license number 20A18721, 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 Marja-Liisa Magnuson prescribe under Medicare Part D?

In 2024, Marja-Liisa Magnuson had 1,998 Medicare Part D claims for 293 beneficiaries; the average among sports medicine (family medicine) physician prescribers was 855. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.