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MICHAEL DEL ROSARIO M.D.
NPI 1891164307
Internal Medicine - Hematology & Oncology in Lakewood, CA

Active since September 15, 2015PECOS EnrolledAccepts Medicare Assignment
100/100
CMS Quality Rating
3300 E SOUTH ST STE 304, LAKEWOOD, CA 90805(562) 232-0550 Get Directions Write a Review

NPPES record last updated: June 5, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 5, 2024, Jun 19, 2018 (2 updates tracked since 2018).

About Michael Del Rosario M.d. NPPES

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

MICHAEL DEL ROSARIO M.D. (NPI 1891164307) is an individual hematology & oncology provider in Lakewood, California, licensed in California (A151675) and active in the NPI registry since September 2015. He is enrolled in Medicare PECOS and is a graduate of Other (2015).

NPPES Registry Identity

NPI1891164307
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameMICHAEL DEL ROSARIOCredential: M.D.
Location Address3300 E SOUTH ST STE 304Lakewood, CA 90805-4594
Mailing Address3300 E South St Ste 304Lakewood, CA 90805-4594
Phone(562) 232-0550
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateSeptember 15, 2015
Last NPPES UpdateJune 5, 20242 updates tracked since enumeration
NPPES CertifiedJune 5, 2024
✔ NPI 1891164307 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in CA · A151675
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
Also ListedInternal MedicineTaxonomy 207R00000X · License A151675 (CA)
3300 E SOUTH ST STE 304, Lakewood, CA 90805
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.Insurance ›

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

Michael 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 ID42575342
PECOS Enrollment IDI20180713001578
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 Michael Del Rosario reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Starling Oncology Ca, A Professional Corporation
5.4 mi
Hematology & Oncology
11525 BROOKSHIRE AVE STE 202
Downey, CA 90241
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: The Oncology Institute Ca, A Professional Corporation
  • 110 clinicians in this Medicare group
NPI 1275651515 (562) 869-1201

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 10

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.

Injection, ondansetron hydrochloride, per 1 mg J2405
Ondansetron hydrochloride is a medication given via injection to help prevent nausea and vomiting, often due to chemotherapy or surgery. It works by blocking certain chemicals in the body that trigger these symptoms.
644 services14 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
99 services73 patients
Collection of blood sample from implanted device 36591
Collection of a blood sample from an implanted device involves drawing blood from a device placed under your skin. This device, often a port or catheter, allows easy access to your bloodstream. The procedure is usually quick and causes minimal discomfort.
59 services22 patients
Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less 96367
This procedure involves injecting fluids or medication directly into your vein. It's used for treatment, prevention, or diagnosis. An additional sequential infusion may be given within an hour if needed. This helps to ensure the medicine is distributed effectively in your body.
54 services18 patients
Administration of chemotherapy into vein, 1 hour or less 96413
Chemotherapy is a treatment that uses drugs to destroy cancer cells. When administered into a vein, it's often through an IV. This procedure usually lasts 1 hour or less. You may feel a slight pinch as the needle is inserted, but it's generally painless.
53 services19 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
48 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90805 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$187.60 typical visit price
range $62.96 – $187.60
Typical copayment $46.90 (range $15.74 – $46.90)
Most-billed visit code 99205
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality90
Promoting Interoperability99
Improvement Activities40

Other Providers at the Same Location NPPES

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

OMKAR SUBHASH MARATHE MD
Internal Medicine (Hematology & Oncology)
3300 E SOUTH ST STE 304
LAKEWOOD, CA 90805
Los Angeles County (562) 232-0550

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 Michael Del Rosario's NPI number?

The NPI number for Michael Del Rosario is 1891164307. It was assigned to this individual provider in the NPPES registry on September 15, 2015.

Where is Michael Del Rosario located?

Michael Del Rosario practices at 3300 E South St Ste 304, Lakewood, CA 90805. The listed phone number is (562) 232-0550.

What is Michael Del Rosario's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Michael Del Rosario enrolled in Medicare?

Yes. Michael 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 Michael Del Rosario's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Del Rosario reassigns Medicare benefits to Starling Oncology Ca, A Professional Corporation (Downey, 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 Michael Del Rosario's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Michael Del Rosario accept?

Health plans from UnitedHealthcare list Michael Del Rosario as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Michael Del Rosario was last updated on June 5, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.