2026 NPPES data Nurse Practitioner NPI 1689090656
Verify on CMS →

Fusako Hatasaka

Nurse Practitioner in Los Angeles, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
1K
Medicare Part D claims · 142 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
97%
generic claims · 3% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$498.01
22 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

Fusako Hatasaka filed 1,045 Medicare Part D claims in 2023 as a Nurse Practitioner in Los Angeles, California, prescribing 97% generic.

1K
Part D claims, 2023
97%
generic prescribing
$498.01
industry payments (Sunshine Act)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

Fusako Hatasaka's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

1,045 Top 24% higher than 76% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). This entry sits in this band. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about Fusako Hatasaka?

Quality data not reported

NPI registry status

Active

Issued 03/13/2014

NPI 1689090656

Primary specialty

Nurse Practitioner

High-volume

87,227 US NPIs in this specialty

Medicare Part D claims

1,045 4% vs specialty avg

2023 prescription claims

Specialty avg: 1,084

Specialty distribution in California

How Nurse Practitioner compares to other specialties among California providers

California providers

Nurse Practitioner share within California

1. Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Nurse Practitioner share within California

Specialty board-certification context

Estimated specialty board-certified rate — Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Nurse Practitioner) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Fusako Hatasaka appears in the CMS NPPES registry as a Nurse Practitioner provider at 1701 E CESAR E CHAVEZ AVE, Los Angeles, CA, 90033, with a listed phone of (323) 222-0137. NPI 1689090656 was issued on 03/13/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Hatasaka most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,045 prescription claims written by this provider, covering 142 Medicare beneficiaries and totaling roughly $45K in drug spend, split 3% brand-name and 97% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Nurse Practitioner is a high-volume specialty nationwide, with 87,227 enrolled providers across 56 states and an average of 1,084 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1701 E CESAR E CHAVEZ AVE
Los Angeles, CA 90033

Provider Details

NPI 1689090656
Specialty Nurse Practitioner
Gender Female
NPI Issued 03/13/2014

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Fusako Hatasaka. Source: openpaymentsdata.cms.gov.

Total received

$498

Largest payer

AstraZeneca Pharmaceuticals LP

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to Fusako Hatasaka. To verify Fusako Hatasaka's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

Fusako Hatasaka — brand share 3.0%
Specialty average (est.)

3% brand-name claims vs 97% generic, on 1,045 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,045
Total Claims
$45K
Total Drug Cost
142
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,783
Total Day Supply
82,778
Brand vs Generic
3% brand / 97% generic
Brand Drug Cost
$12K
Generic Drug Cost
$33K
Antibiotic Claims
15

Patient Demographics

Average Patient Age
75.4 years
Avg HCC Risk Score
0.77
Gender Split
51% female / 49% male
Age Distribution
<65: 0, 65-74: 71, 75-84: 56, 85+: 15

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Fusako Hatasaka prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
224
Amlodipine Besylate
115
Losartan Potassium
80
Metformin Hcl
73
Lisinopril
57
Simvastatin
48
Lovastatin
39
Hydrochlorothiazide
36
Allopurinol
34
Levothyroxine Sodium
25

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Nurse Practitioner Overview

How Fusako Hatasaka fits within the Nurse Practitioner landscape nationally.

87,227
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider

Fusako Hatasaka's 1,045 claims are below the specialty average of 1,084.

Nearby Nurse Practitioner Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Hatasaka.

Compare Nurse Practitioner nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the California medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Fusako Hatasaka's specialty?
Fusako Hatasaka specializes in Nurse Practitioner and practices in Los Angeles, California.
How much does Fusako Hatasaka prescribe under Medicare Part D?
In 2023, Fusako Hatasaka wrote 1,045 Medicare Part D claims totaling $45K in drug costs for 142 beneficiaries.
Where is Fusako Hatasaka located?
Fusako Hatasaka is located at 1701 E CESAR E CHAVEZ AVE, Los Angeles, CA, 90033. Phone: (323) 222-0137.
What is Fusako Hatasaka's NPI number?
Fusako Hatasaka's National Provider Identifier (NPI) is 1689090656, issued on 03/13/2014.
Does Fusako Hatasaka prescribe more brand-name or generic drugs?
Fusako Hatasaka's prescribing is 3% brand-name and 97% generic drugs by claim count, with $12K in brand drug costs.
How many Nurse Practitioner providers are there in the US?
There are 87,227 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
What drugs does Fusako Hatasaka prescribe most often?
Based on 2023 Medicare Part D data, Fusako Hatasaka's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Fusako Hatasaka accept Medicare?
Fusako Hatasaka appears in CMS Medicare data with 1,045 Part D claims and 142 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Fusako Hatasaka's credentials?
Fusako Hatasaka's NPI is 1689090656. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology