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MAMATHA SIRICILLA M.B.B.S
NPI 1487967576
Internal Medicine - Medical Oncology in Cameron Park, CA

Active since July 19, 2010PECOS EnrolledAccepts Medicare Assignment
3581 PALMER DR STE 400, CAMERON PARK, CA 95682(530) 676-6600 Get Directions Write a Review

NPPES record last updated: October 8, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 8, 2024, Jul 17, 2020, Jul 10, 2020 and 2 more (5 updates tracked since 2017).

About Mamatha Siricilla M.b.b.s NPPES

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

MAMATHA SIRICILLA M.B.B.S (NPI 1487967576) is an individual medical oncology provider in Cameron Park, California, licensed in California (A148859) and active in the NPI registry since July 2010. She is enrolled in Medicare PECOS, maintains a secondary practice location in Castro Valley, and is a graduate of Other (2006).

NPPES Registry Identity

NPI1487967576
Entity TypeIndividualFemale
Primary Taxonomy207RX0202X
Provider Legal NameMAMATHA SIRICILLACredential: M.B.B.S
Location Address3581 PALMER DR STE 400Cameron Park, CA 95682-8237
Mailing Address3581 Palmer Dr Ste 400Cameron Park, CA 95682-8237 · (530) 676-6600
Phone(530) 676-6600
Sole ProprietorNo
Medical School CMSOtherGraduated 2006
Enumeration DateJuly 19, 2010
Last NPPES UpdateOctober 8, 20245 updates tracked since enumeration
NPPES CertifiedOctober 8, 2024
✔ NPI 1487967576 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License✔ Licensed in CA · A148859
Definition
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
Also ListedInternal MedicineTaxonomy 207R00000X · License A148859 (CA)
Also ListedInternal Medicine · HematologyTaxonomy 207RH0000X · License A148859 (CA)
Also ListedInternal Medicine · Hematology & OncologyTaxonomy 207RH0003X · License 148859 (CA)
3581 PALMER DR STE 400, Cameron Park, CA 95682
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Secondary Practice Location 1

Location 120055 Lake Chabot Rd Ste 130Castro Valley, CA 94546-5332 · Phone (888) 924-1036

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

Mamatha Siricilla M.b.b.s 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 ID4688941693
PECOS Enrollment IDI20170523001807
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 Reassignments

5

Medicare enrollment records show Mamatha Siricilla reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Marshall Medical Center
Same address
Gastroenterology
3501 PALMER DR STE 201
Cameron Park, CA 95682
  • Reassigned Medicare billing, California enrollment
  • 152 clinicians in this Medicare group
NPI 1619021201 (530) 672-7052
Sierra Hematology-Oncology Medical Center, A Professional Corporation
17 mi
Hematology & Oncology
7803 MADISON AVE BLDG A, SUITE 100
Citrus Heights, CA 95610
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Sierra Hematology And Oncology Medical Centers
  • 38 clinicians in this Medicare group
NPI 1992796759 (916) 962-1554
Stanford Health Care
84 mi
Radiation Oncology
5725 W LAS POSITAS BLVD, SUITE 100B
Pleasanton, CA 94588
  • Reassigned Medicare billing, California enrollment
  • 4,258 clinicians in this Medicare group
NPI 1124561758 (650) 723-4000
University Healthcare Alliance
98 mi
Internal Medicine
7999 GATEWAY BLVD STE 200
Newark, CA 94560
  • Reassigned Medicare billing, California enrollment
  • 435 clinicians in this Medicare group
NPI 1760531198 (888) 924-1036
Community Health Partners
141 mi
Multi-Specialty
7257 N FRESNO ST
Fresno, CA 93720
  • Reassigned Medicare billing, California enrollment
  • 604 clinicians in this Medicare group
NPI 1952912420 (559) 324-4952

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 8

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.
360 services278 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.
249 services158 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
77 services57 patients
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025
A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.
63 services35 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
56 services32 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
36 services36 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95682 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
$180.85 typical visit price
range $60.44 – $180.85
Typical copayment $45.21 (range $15.11 – $45.21)
Most-billed visit code 99205
Established Patient
$105.95 typical visit price
range $19.88 – $148.15
Typical copayment $26.48 (range $4.97 – $37.03)
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.

Referred Medical Equipment & Supplies CMS DME claims 6

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4035
Other-Enteral and Parenteral · category OB006N
3 suppliers11 claims330 services$4.04 avg. paid by Medicare
Enteral formula, nutritionally complete with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4150
Other-Enteral and Parenteral · category OB006N
3 suppliers12 claims7,281 services$0.31 avg. paid by Medicare
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier12 claims12 services$13.62 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
3 suppliers23 claims23 services$61.18 avg. paid by Medicare
Capecitabine, oral, 500 mg J8521
Treatment-Treatment - Miscellaneous · category RX029N
3 suppliers27 claims2,002 services$0.68 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
3 suppliers20 claims20 services$17.98 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

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

MARGARITA MIYASATO
Pharmacist (Oncology)
3581 PALMER DR STE 400
CAMERON PARK, CA 95682
El Dorado County (415) 297-8303

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 Mamatha Siricilla's NPI number?

The NPI number for Mamatha Siricilla is 1487967576. It was assigned to this individual provider in the NPPES registry on July 19, 2010.

Where is Mamatha Siricilla located?

Mamatha Siricilla practices at 3581 Palmer Dr Ste 400, Cameron Park, CA 95682. The listed phone number is (530) 676-6600.

What is Mamatha Siricilla's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Mamatha Siricilla enrolled in Medicare?

Yes. Mamatha Siricilla 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 organizations bill Medicare for Mamatha Siricilla's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mamatha Siricilla reassigns Medicare benefits to 5 organizations: Marshall Medical Center (Cameron Park, CA), Sierra Hematology-Oncology Medical Center, A Professional Corporation (Citrus Heights, CA), Stanford Health Care (Pleasanton, CA), University Healthcare Alliance (Newark, CA) and Community Health Partners (Fresno, CA). Each 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 Mamatha Siricilla'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 Mamatha Siricilla was last updated on October 8, 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.