DR. MARITES P DEL ROSARIO M.D.
NPI 1205937349
Specialist in Lancaster, CA

Q: What is Marites Del Rosario's NPI number?

The NPI number for Marites Del Rosario is 1205937349. It was assigned to this individual provider in the NPPES registry on September 25, 2006.

Q: What is Marites Del Rosario's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Active since September 25, 2006PECOS EnrolledAccepts Medicare Assignment

1672 W AVENUE J, STE 110, LANCASTER, CA 93534(661) 726-2826(661) 723-9557 Get Directions Write a Review

NPPES record last updated: June 14, 2016. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jun 14, 2016, Mar 4, 2016 (2 updates tracked since 2016).

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About Dr. Marites P Del Rosario M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARITES P DEL ROSARIO M.D. (NPI 1205937349) is an individual specialist in Lancaster, California, licensed in California (A53570) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1988).

NPPES Registry Identity

NPI1205937349

Entity TypeIndividualFemale

Primary Taxonomy174400000X

Provider Legal NameDR. MARITES P DEL ROSARIOCredential: M.D.

Location Address1672 W AVENUE J, STE 110Lancaster, CA 93534

Mailing AddressPo Box 6530Lancaster, CA 93539-6530 · (661) 726-2826 · Fax (661) 948-0432

Phone(661) 726-2826

Fax(661) 723-9557

Sole ProprietorYes

Medical School CMSOtherGraduated 1988

Enumeration DateSeptember 25, 2006

Last NPPES UpdateJune 14, 20162 updates tracked since enumeration

✔ NPI 1205937349 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in CA · A53570

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

1672 W AVENUE J, Lancaster, CA 93534

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Marites P Del Rosario M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6103061411

PECOS Enrollment IDI20130314000153

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Marites Del Rosario reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Av Behavioral Medicine, Inc

Same address

Psychiatry

1672 W AVENUE J STE 110
Lancaster, CA 93534

Reassigned Medicare billing, California enrollment
2 clinicians in this Medicare group

NPI 1881070100 (661) 723-9557

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

895 services160 patients

Psychotherapy with evaluation and management visit, 30 minutes 90833

Psychotherapy with evaluation and management is a 30-minute session where a mental health professional talks with you about your concerns and feelings. They assess your mental health, provide support, and manage your treatment plan to help improve your well-being.

562 services148 patients

Other Providers at the Same Location NPPES 14

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MEDPORT RESTORATIVE CARE & REHAB SUPPLIES, INC.

Durable Medical Equipment & Medical Supplies

1672 W AVENUE J, SUITE #207-C
LANCASTER, CA 93534

Los Angeles County (661) 945-3344

GAY AND LESBIAN ADOLESCENT SOCIAL SERVICES, INC

Community/Behavioral Health

1672 W AVENUE J, SUITE 203
LANCASTER, CA 93534

Los Angeles County (818) 239-0112

ANTELOPE VALLEY FAMILY HEALTH MEDICAL GROUP, INC

Family Medicine

1672 W AVENUE J, SUITE 105
LANCASTER, CA 93534

Los Angeles County (661) 945-0821

JEFFREY H STEIN, DDS, INC

Clinic/Center (Dental)

1672 W AVENUE J, STE 109
LANCASTER, CA 93534

Los Angeles County (661) 949-1894

CARMEL I. ERNEST, M.D., INC.

Family Medicine

1672 W AVENUE J, SUITE 103
LANCASTER, CA 93534

Los Angeles County (661) 949-7615

INDU JAIN M.D.

Anesthesiology

1672 W AVENUE J, SUITE 209
LANCASTER, CA 93534

Los Angeles County (661) 729-6854

DR. LASHANDA JONES-CORNEILLE PH.D.

Psychologist

1672 W AVENUE J, SUITE 207
LANCASTER, CA 93534

Los Angeles County (661) 945-0919

TAMDING TEMPO M.D., INC.

Anesthesiology

1672 W AVENUE J, SUITE 209
LANCASTER, CA 93534

Los Angeles County (661) 729-6854

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marites Del Rosario's NPI number?

The NPI number for Marites Del Rosario is 1205937349. It was assigned to this individual provider in the NPPES registry on September 25, 2006.

Where is Marites Del Rosario located?

Marites Del Rosario practices at 1672 W Avenue J Ste 110, Lancaster, CA 93534. The listed phone number is (661) 726-2826.

What is Marites Del Rosario's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is Marites Del Rosario enrolled in Medicare?

Yes. Marites Del Rosario is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Marites Del Rosario's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marites Del Rosario reassigns Medicare benefits to Av Behavioral Medicine, Inc (Lancaster, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marites Del Rosario's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Marites Del Rosario was last updated on June 14, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.