1. Home
  2. Directory
  3. California
  4. Oakland
  5. Pediatrics
  6. NPI Profile

NATSUKO TAKAKUWA MD
NPI 1689093049
Pediatrics in Oakland, CA

Active since April 15, 2014PECOS Enrolled
818 WEBSTER STREET, OAKLAND, CA 94607(510) 986-6800(510) 986-6896 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Natsuko Takakuwa Md NPPES

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

NATSUKO TAKAKUWA MD (NPI 1689093049) is an individual pediatrics provider in Oakland, California, licensed in California (A139501) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1689093049
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameNATSUKO TAKAKUWACredential: MD
Location Address818 WEBSTER STREETOakland, CA 94607
Mailing Address818 Webster StreetOakland, CA 94607 · (510) 986-6800 · Fax (510) 986-6896
Phone(510) 986-6800
Fax(510) 986-6896
Sole ProprietorNo
Enumeration DateApril 15, 2014
Last NPPES UpdateJuly 21, 2022
✔ NPI 1689093049 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · A139501
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
818 WEBSTER STREET, Oakland, CA 94607
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Natsuko Takakuwa Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Natsuko Takakuwa reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Asian Health Services
Same address
Federally Qualified Health Center (FQHC)
818 WEBSTER ST
Oakland, CA 94607
  • Reassigned Medicare billing, California enrollment
  • 130 clinicians in this Medicare group
NPI 1841331402 (510) 986-6800

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94607 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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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.

Other Providers at the Same Location NPPES 6

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

RYU CHENG LCSW
Social Worker (Clinical)
818 WEBSTER STREET
OAKLAND, CA 94607
Alameda County (510) 685-6800
DANIEL C PARK M.D.
Internal Medicine
818 WEBSTER STREET
OAKLAND, CA 94607
Alameda County (510) 986-6800
JENNY RILEY
Family Medicine
818 WEBSTER STREET
OAKLAND, CA 94607
Alameda County (510) 986-6800
JENNY LAM LCSW
Social Worker (Clinical)
818 WEBSTER STREET
OAKLAND, CA 94607
Alameda County (510) 986-6800
THANH TAN DINH NP
Nurse Practitioner (Family)
818 WEBSTER STREET
OAKLAND, CA 94607
Alameda County (510) 986-6800
THIEN GANGOPADYHAY FNP
Nurse Practitioner (Family)
818 WEBSTER STREET
OAKLAND, CA 94607
Alameda County (510) 986-6830

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 Natsuko Takakuwa's NPI number?

The NPI number for Natsuko Takakuwa is 1689093049. It was assigned to this individual provider in the NPPES registry on April 15, 2014.

Where is Natsuko Takakuwa located?

Natsuko Takakuwa practices at 818 Webster Street, Oakland, CA 94607. The listed phone number is (510) 986-6800.

What is Natsuko Takakuwa's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Natsuko Takakuwa enrolled in Medicare?

Yes. Natsuko Takakuwa is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Natsuko Takakuwa's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Natsuko Takakuwa reassigns Medicare benefits to Asian Health Services (Oakland, 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 Natsuko Takakuwa'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 Natsuko Takakuwa was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.