Dr. Brian Scott Maser, MD
- Medicare services, 2019
- 40
- Part D claims, 2022
- 44
- Hospital affiliations
- 1
- State license
- 1
- Year NPI issued
- 2009
- Practice address
- 5901 E. Seventh Street, Long Beach, CA 90822
- Practice phone
- Call (562) 826-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Maser's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Brian Scott Maser is a psychiatrist in Long Beach, California
Dr. Maser practices at Tibor Rubin VA Medical Center in Long Beach, California, part of Veterans Health Administration.
Dr. Maser's NPI, 1144554635, was assigned on September 30, 2009. Dr. Maser graduated from UC Davis School of Medicine in 2010. Dr. Maser holds California license A121510.
- NPI
- 1144554635NPI Registry (opens in a new tab)
- NPI enumeration date
- September 30, 2009
- NPI status
- Active
- Practice phone
- (562) 826-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Brian Scott Maser practices at Tibor Rubin VA Medical Center in Long Beach, California
Dr. Maser's primary practice is Tibor Rubin VA Medical Center, at 5901 E. Seventh Street, Long Beach, CA 90822 in Los Angeles County. The practice phone is (562) 826-8000.
- Tibor Rubin VA Medical Center5901 E. Seventh Street, Long Beach, CA 90822 · Los Angeles CountyPhone(562) 826-8000
Source: Dmand AI Affiliation Data
Dr. Brian Scott Maser is affiliated with 1 site of care
Dr. Maser's primary practice is Tibor Rubin VA Medical Center in Long Beach, California, part of Veterans Health Administration. Dr. Maser's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Brian Scott Maser's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Maser practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tibor Rubin VA Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Brian Scott Maser is one of 6,803 psychiatrists in California
Psychiatry is Dr. Maser's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Maser is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dr. Maser is licensed in California.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
Psychiatrists near Dr. Maser
Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Brian Scott Maser billed Medicare for 40 services in 2019
CMS data shows 40 Medicare services from Dr. Maser across 1 procedure code in 2019, all of them office visits. Medicare paid $2,437 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Maser's Medicare services by type, 2017 to 2019
- 2017
- 2019
- Office and hospital visits
- 2017: 342019: 4018%
Dr. Maser compared with the California median for psychiatrists, 2019
- Dr. Maser
- California median
- Medicare services
- 40vs 11966% below
- Part D claims
- 44vs 14469% below
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Maser's most billed Medicare procedure codes, 2019
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Maser and other psychiatrists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Brian Scott Maser's patients have a median age of 81
Across all payers, Dmand AI patient panel data puts Dr. Maser's median patient age at 81, with 0% women.
Dr. Maser's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 81
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. Brian Scott Maser wrote 44 Medicare Part D claims in 2022
In 2022, Dr. Maser wrote 44 Medicare Part D claims. They cover 3 drugs, with $41,732 in total drug cost. In 2021, CMS named 207 claims across 10 drugs.
Dr. Maser's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 2072022: 4479%
Drugs named by CMS: 3 in 2022, 10 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Brian Scott Maser graduated from UC Davis School of Medicine
Dr. Maser graduated from UC Davis School of Medicine in 2010.
- Medical school
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Sources for Dr. Brian Scott Maser's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Brian Scott Maser
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Brian Scott Maser's NPI number?
Dr. Brian Scott Maser's NPI number is 1144554635. It was assigned on September 30, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Brian Scott Maser?
Dr. Brian Scott Maser is a psychiatrist in Long Beach, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Brian Scott Maser practice?
Dr. Maser practices at 5901 E. Seventh Street, Long Beach, CA 90822. Dr. Maser's primary practice is Tibor Rubin VA Medical Center in Long Beach, California, part of Veterans Health Administration.
What is Dr. Brian Scott Maser's office phone number?
The practice phone on file for Dr. Maser is (562) 826-8000.
What is Dr. Brian Scott Maser's medical license number?
Dr. Maser holds California license A121510.
Which hospitals is Dr. Brian Scott Maser affiliated with?
Dr. Maser practices at Tibor Rubin VA Medical Center in Long Beach, California.
Does Dr. Brian Scott Maser accept Medicare?
Yes. CMS data shows Dr. Maser billed Medicare for 40 services in 2019.
Is Dr. Brian Scott Maser board certified?
Yes. Dr. Maser is board certified in psychiatry by the American Board of Psychiatry and Neurology.
What services does Dr. Brian Scott Maser bill to Medicare?
In 2019, Dr. Maser's most billed Medicare services were office visit, established patient (99214).
Where did Dr. Brian Scott Maser go to medical school?
Dr. Maser graduated from UC Davis School of Medicine in 2010.
What drugs does Dr. Brian Scott Maser prescribe most?
In 2022 Medicare Part D data, Dr. Maser's most prescribed drugs by claims were Quetiapine Fumarate, Latuda and Trazodone HCl.
How long has Dr. Brian Scott Maser been practicing?
Dr. Maser graduated from medical school in 2010, 16 years ago.
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