NPPES file of Aug 9, 2026

Ryan John Anderson, M.D.

Critical Care Medicine (Internal Medicine) Physician · Oakland, CA

Ryan John Anderson, M.D. is a critical care medicine (internal medicine) physician with a practice address in Oakland, California, and NPI 1194130849, issued on Jun 20, 2014. Check the license (California A140880, 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
1194130849
Name
Ryan John Anderson
Credential
M.D.
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License number
A140880 CA
Self-reported in NPPES; status is on the state search
Practice location
411 30TH St Ste 314, Oakland, CA 94609
Phone
(510) 465-6800
Enumerated
Jun 20, 2014
Record last updated
Jan 14, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200820000337); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 2014
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 critical care medicine (internal medicine) physician records → All 723 in California → Look up another NPI →

Also registered at 411 30TH St Ste 314

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

  1. Neha Ahuja, MDCritical Care Medicine (Internal Medicine) Physician1558658492
  2. Maryann Blackwell, R.N.Psychiatric/Mental Health Registered Nurse1518179530
  3. Valentine Ifeacho, M.D.Critical Care Medicine (Internal Medicine) Physician1619297629
  4. Leena Jalota, MDCritical Care Medicine (Internal Medicine) Physician1083992713
  5. Richard Nusser, MDPulmonary Disease Physician1013979525
  6. Elizabeth Spaetzel, AGACNPCritical Care Medicine Nurse Practitioner1609315522

Verify Ryan John Anderson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A140880    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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54% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024

322 Medicare Part D claims for 92 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 54% of claims.

  1. Ryan Anderson322
  2. Specialty average696

Most prescribed

  1. Albuterol Sulfate Hfa72 claims
  2. Prednisone51 claims
  3. Dulera26 claims
  4. Anoro Ellipta18 claims
  5. Trelegy Ellipta16 claims
  6. Fluticasone Propionate14 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: $96.39

3 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 2,708 providers of this specialty with any payment received $2,958.68 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ryan Anderson$96.39
  2. Specialty average$2,958.68

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

Bills Medicare through 2 group practices

  1. Hill Health Inc A Medical CorporationOakland, CA
  2. Inpatient Specialists OF California PCStockton, CA

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

Ryan John Anderson among 723 critical care medicine (internal medicine) physician records in California

Ryan John Anderson, M.D. is one of 723 critical care medicine (internal medicine) physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 78% of them.

  • NPI issued2014 · 78% of these records are older, 19% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated2014 · median 2005 among the 559 with a school on file
  • Record last updated2021 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine (Internal Medicine) Physician providers in California

There are 723 critical care medicine (internal medicine) physician records in California.

All 723 in California → Every provider in Oakland → Critical Care Medicine (Internal Medicine) Physician nationwide →

The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes

  1. Neha Ahuja, MDOakland, CA 946091558658492
  2. Garima Gupta, D.O., M.P.H.Oakland, CA 946091922400530
  3. Valentine Ifeacho, M.D.Oakland, CA 946091619297629
  4. Leena Jalota, MDOakland, CA 946091083992713
  5. Faith McCormack, M.D.Oakland, CA 946091386721553
  6. Yoshita Shroff, M.D.Oakland, CA 946091619115227
  7. Ritbune Prakobkit, M.D.Emeryville, CA 946081144508201
  8. Mohammed Shaikh, M.D.Emeryville, CA 946081992747869

Common questions

What is Ryan John Anderson, M.D.'s NPI number?

Ryan John Anderson, M.D.'s National Provider Identifier (NPI) is 1194130849, issued on Jun 20, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Ryan John Anderson, M.D. located?

The NPPES record lists a practice address at 411 30TH St Ste 314, Oakland, CA, 94609. Phone: (510) 465-6800. Providers update this record themselves, so call before visiting.

How can I verify Ryan John Anderson, M.D.'s license?

NPPES lists California license number A140880, 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 Ryan John Anderson, M.D. prescribe under Medicare Part D?

In 2024, Ryan John Anderson, M.D. had 322 Medicare Part D claims for 92 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. 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.