NPPES file of Aug 9, 2026

Alex Rainow, MD

Cardiovascular Disease Physician · Sonoma, CA

Alex Rainow, MD is a cardiovascular disease physician with a practice address in Sonoma, California, and NPI 1255577904, issued on Dec 31, 2008. Check the license (California C154306, 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
1255577904
Name
Alex Rainow
Credential
MD
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
C154306 CA
Self-reported in NPPES; status is on the state search
Practice location
651 1St St W Ste L, Sonoma, CA 95476
Phone
(707) 935-1470
Enumerated
Dec 31, 2008
Record last updated
Jul 27, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(707) 935-7817
Medicare enrollment
Enrolled (PECOS I20180618000923); may accept Medicare assignment
Medical or professional school
Albany Medical College Of Union University, 2007
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 651 1St St W Ste L

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

  1. Steven Mickelson, PAPhysician Assistant1477673804
  2. Kenneth Tobin, DOCardiovascular Disease Physician1700962727

Verify Alex Rainow in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C154306
    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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2.0 times the Medicare Part D claims of the average cardiovascular disease physician in 2024

6,216 Medicare Part D claims for 752 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Alex Rainow6,216
  2. Specialty average3,078

Most prescribed

  1. Eliquis752 claims
  2. Metoprolol Succinate549 claims
  3. Losartan Potassium438 claims
  4. Amlodipine Besylate434 claims
  5. Atorvastatin Calcium365 claims
  6. Furosemide350 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: $146.40

2 payments; by number, the most common kind was food and beverage; the largest payer was Edwards Lifesciences Corporation. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alex Rainow$146.40
  2. Specialty average$3,819.56

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. Regents Univ OF California UcsfSan Francisco, CA

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

Alex Rainow among 2,574 cardiovascular disease physician records in California

Alex Rainow, MD is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 67% of them.

  • NPI issued2008 · 67% of these records are older, 28% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2007 · median 1999 among the 1,742 with a school on file
  • Record last updated2021 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in California

There are 2,574 cardiovascular disease physician records in California.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. James Price, MDSonoma, CA 954761245244755
  2. Kenneth Tobin, DOSonoma, CA 954761700962727
  3. Benjamin Meyer, M.D.Ukiah, CA 954821447235254
  4. Dale Morrison, M.D.Ukiah, CA 954821447258280
  5. Jon Portnoff, M.D.Ukiah, CA 954821609874445
  6. William Bowden, D.O., F.A.C.C.Windsor, CA 954921528133998
  7. Bradley Clair, M.D.Lakeport, CA 954531083611198
  8. Mark Gardner, MDLakeport, CA 954531811921174

Common questions

What is Alex Rainow, MD's NPI number?

Alex Rainow, MD's National Provider Identifier (NPI) is 1255577904, issued on Dec 31, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Alex Rainow, MD located?

The NPPES record lists a practice address at 651 1St St W Ste L, Sonoma, CA, 95476. Phone: (707) 935-1470. Providers update this record themselves, so call before visiting.

How can I verify Alex Rainow, MD's license?

NPPES lists California license number C154306, 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 Alex Rainow, MD prescribe under Medicare Part D?

In 2024, Alex Rainow, MD had 6,216 Medicare Part D claims for 752 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.