NPPES file of Aug 9, 2026

Ronald S. Blustein, M.D.

Psychiatry Physician · Big Bear Lake, CA

Ronald S. Blustein, M.D. is a psychiatry physician with a practice address in Big Bear Lake, California, and NPI 1023129335, issued on Aug 31, 2006. Check the license (California A23195, 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
1023129335
Name
Ronald S. Blustein
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A23195 CA
Self-reported in NPPES; status is on the state search
Practice location
41945 Big Bear Blvd, Suite 222, Big Bear Lake, CA 92315
Phone
(909) 866-5070
Enumerated
Aug 31, 2006
Record last updated
May 31, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20050111000698); 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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Verify Ronald S. Blustein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A23195
    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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86% fewer Medicare Part D claims than the average psychiatry physician in 2024

144 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Ronald Blustein144
  2. Specialty average1,000

Most prescribed

  1. Clonazepam26 claims
  2. Buspirone Hcl18 claims
  3. Trazodone Hcl13 claims
  4. Ziprasidone Hcl12 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. Ehab Yacoub MD IncGardena, CA

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

3 psychiatry physician records list a practice address in Big Bear Lake

They are 3 of the 189 NPPES records with a practice address in Big Bear Lake, and 8,673 psychiatry physician records in California.

Other psychiatry physician records in California

  1. Nancy Aaen, MDNapa, CA1609816669
  2. Criselda Abad-Santos, M.D.Woodland Hills, CA1760461826
  3. Mekabiz Abaian, MDSan Bernardino, CA1891090163
  4. Brenda Abarca, MDTorrance, CA1407485527
  5. Pilar Abascal, M.D.Los Angeles, CA1730528191
  6. Michele Abbasi, M.D.Westlake Village, CA1093940330
  7. Zohaib AbbasiMartinez, CA1013392224
  8. Sandy Abdelkedous, MDFresno, CA1306093109
  9. Nancy Abdelmalak, M.D.Elk Grove, CA1912137498
  10. Ezzat Abdelmalek, M.DDana Point, CA1992828826

Common questions

What is Ronald S. Blustein, M.D.'s NPI number?

Ronald S. Blustein, M.D.'s National Provider Identifier (NPI) is 1023129335, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ronald S. Blustein, M.D. located?

The NPPES record lists a practice address at 41945 Big Bear Blvd, Suite 222, Big Bear Lake, CA, 92315. Phone: (909) 866-5070. Providers update this record themselves, so call before visiting.

How can I verify Ronald S. Blustein, M.D.'s license?

NPPES lists California license number A23195, 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 Ronald S. Blustein, M.D. prescribe under Medicare Part D?

In 2024, Ronald S. Blustein, M.D. had 144 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. 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.