NPPES file of Aug 9, 2026

Raymond S. Ruzicano, M.D.

Psychiatry Physician · Walnut Creek, CA

Raymond S. Ruzicano, M.D. is a psychiatry physician with a practice address in Walnut Creek, California, and NPI 1811062508, issued on Nov 21, 2006. Check the license (California G33140, 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
1811062508
Name
Raymond S. Ruzicano
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
G33140 CA
Self-reported in NPPES; status is on the state search
Practice location
112 LA Casa Via, Walnut Creek, CA 94598
Phone
(925) 943-1400
Enumerated
Nov 21, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(925) 946-1463
Medicare enrollment
Enrolled (PECOS I20050819000672); may accept Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 1975
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 112 LA Casa Via

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

  1. Sarah Berg, NPNurse Practitioner1427062975
  2. May Chiu, MDNephrology Physician1407857329
  3. Mario Curzi, MDNephrology Physician1336140359
  4. Robert Davies, MDNephrology Physician1215937933
  5. John Deverman, D.D.S.General Practice Dentistry1487866265
  6. Carol Diraimondo, MDNephrology Physician1265433288

Verify Raymond S. Ruzicano in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G33140
    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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13% fewer Medicare Part D claims than the average psychiatry physician in 2024

873 Medicare Part D claims for 69 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Raymond Ruzicano873
  2. Specialty average1,000

Most prescribed

  1. Lorazepam74 claims
  2. Trazodone Hcl70 claims
  3. Zolpidem Tartrate70 claims
  4. Sertraline Hcl60 claims
  5. Escitalopram Oxalate46 claims
  6. Clonazepam42 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.

Raymond S. Ruzicano among 8,673 psychiatry physician records in California

Raymond S. Ruzicano, M.D. is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 67% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated1975 · median 2005 among the 3,295 with a school on file
  • Record last updated2007 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

67 psychiatry physician records list a practice address in Walnut Creek

They are 67 of the 6,170 NPPES records with a practice address in Walnut Creek, and 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Paul Abrinko, MDWalnut Creek, CA 945981912081308
  2. Allan Barza, M.D.Walnut Creek, CA 945981952475030
  3. Ileana Boitor, MDWalnut Creek, CA 945981245485242
  4. Robert Hepps, M.D.Walnut Creek, CA 945981457441545
  5. Bradley Johnson, M.D.Walnut Creek, CA 945981407023567
  6. Robert Picker, M.D.Walnut Creek, CA 945981275574691
  7. Samee Shahzada, M.D.Walnut Creek, CA 945981831345784
  8. Richard Slawsky, M.D.Walnut Creek, CA 945981669528410

Common questions

What is Raymond S. Ruzicano, M.D.'s NPI number?

Raymond S. Ruzicano, M.D.'s National Provider Identifier (NPI) is 1811062508, issued on Nov 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Raymond S. Ruzicano, M.D. located?

The NPPES record lists a practice address at 112 LA Casa Via, Walnut Creek, CA, 94598. Phone: (925) 943-1400. Providers update this record themselves, so call before visiting.

How can I verify Raymond S. Ruzicano, M.D.'s license?

NPPES lists California license number G33140, 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 Raymond S. Ruzicano, M.D. prescribe under Medicare Part D?

In 2024, Raymond S. Ruzicano, M.D. had 873 Medicare Part D claims for 69 beneficiaries; 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.