Physician Profile
Roy B. Del-Rosario, M.D.
Unclaimed ProfileAbout Dr. Del-Rosario
Roy B. Del-Rosario, M.D. practices psychiatry in Lancaster, CA. According to Medicare claims data, Roy cared for 329 Medicare patients across 1,627 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more and psychotherapy with evaluation and management visit, 30 minutes. The provider's National Provider Identifier (NPI) is 1740381870.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (661) 726-2826
- Email not available
Practice Locations
1672 W AVENUE J STE 110
Lancaster, CA 93534
Conditions Commonly Evaluated or Treated
Within Psychiatry generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Anxiety, trauma, and obsessive-compulsive
Mood disorders
Psychotic disorders
Substance-related and addictive
Addiction & Substance Use
Cognitive and adjustment
Eating Disorders
Eating, sleep, and somatic
Mood & Depression
Neurodevelopmental and behavioral
Personality and dissociative
Sleep & Wakefulness
Procedures & services
Most searched procedures
- Anxiety and depression treatment
- Cognitive behavioral therapy
- Medication management
- Psychiatric evaluation
- Telepsychiatry
Assessment
Addiction care
Addiction Medicine
Assessments
Brain stimulation
Consultations
Diagnostics
Inpatient care
Interventional psychiatry
Psychotherapy
Sleep Medicine
Specialized care
Therapy
Therapy and care
Procedures Most Often Billed to Medicare
1,627 services · 329 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Psychotherapy with evaluation and management visit, 30 minutes | Treatment | 90833 |
104 | As often as other peers in Psychiatry |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
1,523 | More than most peers in Psychiatry |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other psychiatrists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 29 related providers in 4 groups
Other psychiatrists in Lancaster 7
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1985 at Other 6
Providers who graduated from the same medical school in the same year.
Also performs Psychotherapy with evaluation and management visit, 30 minutes 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Roy B. Del-Rosario's specialty?
Roy B. Del-Rosario is a psychiatrist in Lancaster, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychiatry”.
NPI registry
Where can I find Roy B. Del-Rosario?
Roy B. Del-Rosario is listed at 1672 W Avenue J Ste 110, Lancaster, CA 93534. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Roy B. Del-Rosario?
The number on file is (661) 726-2826. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Roy B. Del-Rosario's NPI number?
Roy B. Del-Rosario's National Provider Identifier is 1740381870. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Roy B. Del-Rosario's education?
Roy B. Del-Rosario attended Other, graduating in 1985. This comes from the CMS National Downloadable File.
CMS public data
How long has Roy B. Del-Rosario been practicing?
Roy B. Del-Rosario has 41 years experience. Calculated from a graduation year of 1985, reported in the CMS National Downloadable File.
CMS public data
What is Roy B. Del-Rosario known for?
According to Medicare billing data, Roy B. Del-Rosario provides treatments such as psychotherapy with evaluation and management visit, 30 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Roy B. Del-Rosario confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Roy B. Del-Rosario. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.