2026 NPPES data Chiropractor NPI 1992817670 M.D., D.C.
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Kimberly Washington, M.D., D.C.

Chiropractor in Oakland, California. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 95,153 in Chiropractor, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration — see our methodology.

Federal data — no proprietary rating. We show these CMS records as-is — no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
345
Medicare Part D claims · 88 beneficiaries · Chiropractor avg: 824
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Kimberly Washington, M.D., D.C. filed 345 Medicare Part D claims in 2023 as a Chiropractor in Oakland, California.

345
Part D claims, 2023

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.

Kimberly Washington, M.D., D.C.'s Medicare Part D volume vs every U.S. prescriber

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

345 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 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 Kimberly Washington, M.D., D.C.?

Quality data not reported

NPI registry status

Active

Issued 08/31/2006

NPI 1992817670

Primary specialty

Chiropractor

High-volume

95,153 US NPIs in this specialty

Medicare Part D claims

345 58% vs specialty avg

2023 prescription claims

Specialty avg: 824

Specialty distribution in California

How Chiropractor compares to other specialties among California providers

California providers

Largest specialties in California (% of in-state providers)

Behavior Technician - 17.3%Behavior Technician17.3%Marriage & Family Therapist - 5.5%Marriage & Family Therapist5.5%Student in an Organized Health Care Education/Training Program - 5%Student in an Organized Health Care Education/Training Program5%Mental Health Counselor - 3.9%Mental Health Counselor3.9%Pharmacist - 3.5%Pharmacist3.5%Clinical Social Worker - 3.1%Clinical Social Worker3.1%Chiropractor - 1.2%Chiropractor1.2%
Largest specialties in California (% of in-state providers)

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Chiropractor) — 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).

Kimberly Washington, M.D., D.C. appears in the CMS NPPES registry as a Chiropractor provider holding M.D., D.C. credentials at 350 HAWTHORNE AVE, Oakland, CA, 94609, with a listed phone of (510) 869-8818. NPI 1992817670 was issued on 08/31/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Washington 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 345 prescription claims written by this provider, covering 88 Medicare beneficiaries and totaling roughly $20K in drug spend, with an opioid prescribing rate of 6.7%. 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.

Chiropractor is a high-volume specialty nationwide, with 95,153 enrolled providers across 56 states and an average of 824 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

350 HAWTHORNE AVE
Oakland, CA 94609

Provider Details

NPI 1992817670
Specialty Chiropractor
Credentials M.D., D.C.
Gender Female
NPI Issued 08/31/2006

Hospital and facility affiliations

Facilities where Kimberly Washington, M.D., D.C. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

Sutter Bay Medical Foundation
Fremont, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 Kimberly Washington, M.D., D.C.. To verify Kimberly Washington, M.D., D.C.'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.

Medicare Part D Prescribing Data

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

345
Total Claims
$20K
Total Drug Cost
88
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
366
Total Day Supply
9,777
Generic Drug Cost
$7K
Opioid Claims
23 (6.7% rate)

Patient Demographics

Average Patient Age
75.7 years
Avg HCC Risk Score
1.86
Gender Split
55% female / 45% male

Top Prescribed Drugs (Medicare Part D)

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

What Kimberly Washington, M.D., D.C. 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
33
Amlodipine Besylate
22
Gabapentin
19
Metoprolol Tartrate
17
Pantoprazole Sodium
16
Oxycodone Hcl
12

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

Chiropractor Overview

How Kimberly Washington, M.D., D.C. fits within the Chiropractor landscape nationally.

95,153
Chiropractor Providers in US
56
States with Chiropractor
824
Avg Claims per Provider

Kimberly Washington, M.D., D.C.'s 345 claims are below the specialty average of 824.

Nearby Chiropractor Providers in California

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

Compare Chiropractor 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 Chiropractor 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 Kimberly Washington, M.D., D.C.'s specialty?
Kimberly Washington, M.D., D.C. specializes in Chiropractor and practices in Oakland, California. Credentials: M.D., D.C..
How much does Kimberly Washington, M.D., D.C. prescribe under Medicare Part D?
In 2023, Kimberly Washington, M.D., D.C. wrote 345 Medicare Part D claims totaling $20K in drug costs for 88 beneficiaries.
Where is Kimberly Washington, M.D., D.C. located?
Kimberly Washington, M.D., D.C. is located at 350 HAWTHORNE AVE, Oakland, CA, 94609. Phone: (510) 869-8818.
What is Kimberly Washington, M.D., D.C.'s NPI number?
Kimberly Washington, M.D., D.C.'s National Provider Identifier (NPI) is 1992817670, issued on 08/31/2006.
Does Kimberly Washington, M.D., D.C. prescribe opioids?
Yes, Kimberly Washington, M.D., D.C. had 23 opioid claims in 2023 with an opioid prescribing rate of 6.7%.
How many Chiropractor providers are there in the US?
There are 95,153 Chiropractor providers across 56 states in the US. The average Chiropractor provider writes 824 Medicare Part D claims per year.
What drugs does Kimberly Washington, M.D., D.C. prescribe most often?
Based on 2023 Medicare Part D data, Kimberly Washington, M.D., D.C.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kimberly Washington, M.D., D.C. accept Medicare?
Kimberly Washington, M.D., D.C. appears in CMS Medicare data with 345 Part D claims and 88 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kimberly Washington, M.D., D.C.'s credentials?
Kimberly Washington, M.D., D.C.'s NPI is 1992817670 with credentials M.D., D.C.. 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

Compiled from official public sources by the PlainDoctor editorial team.