Romeo Blas Mariano, M.D.
Psychiatry Physician · Monterey, CA
Romeo Blas Mariano, M.D. is a psychiatry physician with a practice address in Monterey, California, and NPI 1639235831, issued on Dec 29, 2006. Check the license (California G73692, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Romeo Blas Mariano
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- G73692 CA
Self-reported in NPPES; status is on the state search - Practice location
- 262 EL Dorado St, Monterey, CA 93940
- Phone
- (831) 375-6655
- Enumerated
- Dec 29, 2006
- Record last updated
- Mar 7, 2023
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 262 EL Dorado St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mary Welschmeyer, R.N., MFTMarriage & Family Therapist1366705253
Verify Romeo Blas Mariano in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G73692Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average psychiatry physician in 2024
357 Medicare Part D claims for 20 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Clonazepam41 claims
- Levothyroxine Sodium31 claims
- Liothyronine Sodium30 claims
- Bupropion Hcl Sr19 claims
- Alprazolam15 claims
- Escitalopram Oxalate14 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.
Romeo Blas Mariano among 8,673 psychiatry physician records in California
Romeo Blas Mariano, 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 fileNo · 38% of these records are
- Record last updated2023 · 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).
Psychiatry Physician providers in California
There are 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Monterey → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Jerry Ainsworth, M.D.Monterey, CA 939401720099427
- Marshal Blatt, M.D.Monterey, CA 939401699882423
- Cynthia Churchill, MDMonterey, CA 939401639388978
- Dennis Evans, M.D.Monterey, CA 939401891810404
- William Fithian, M.D.Monterey, CA 939401316001159
- Renee Hill, M.D.Monterey, CA 939401639268634
- Eric Jacobson, M.D.Monterey, CA 939401497762397
- Michael Lebowitz, M.D.Monterey, CA 939401811090749
Common questions
What is Romeo Blas Mariano, M.D.'s NPI number?
Romeo Blas Mariano, M.D.'s National Provider Identifier (NPI) is 1639235831, issued on Dec 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Romeo Blas Mariano, M.D. located?
The NPPES record lists a practice address at 262 EL Dorado St, Monterey, CA, 93940. Phone: (831) 375-6655. Providers update this record themselves, so call before visiting.
How can I verify Romeo Blas Mariano, M.D.'s license?
NPPES lists California license number G73692, 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 Romeo Blas Mariano, M.D. prescribe under Medicare Part D?
In 2024, Romeo Blas Mariano, M.D. had 357 Medicare Part D claims for 20 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.