2026 NPPES data General Practice Physician NPI 1639188824 MD
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PATRICIA SYLWESTER, MD

General Practice Physician in OLYMPIA, Washington. 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
91
Medicare Part D claims · 22 beneficiaries · General Practice Physician avg: 3K
What the federal data reveals: PATRICIA SYLWESTER, MD is a General Practice Physician ([object Object]) practicing in OLYMPIA, Washington with a Medicare Part D prescribing footprint of 91 claims across 22 beneficiaries .

What stands out: PATRICIA SYLWESTER, MD filed 91 Medicare Part D claims in 2023 across OLYMPIA, Washington. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

PATRICIA SYLWESTER, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

PATRICIA SYLWESTER, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 08/05/2006

NPI 1639188824

Primary specialty

General Practice Physician

Mid-sized

16,677 US NPIs in this specialty

Medicare Part D claims

91 97% vs specialty avg

2023 prescription claims

Specialty avg: 2,872

Specialty distribution in Washington

How General Practice Physician compares to other specialties among Washington providers

Washington providers

General Practice Physician share within Washington

1. General Practice Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
General Practice Physician share within Washington

Specialty board-certification context

Estimated specialty board-certified rate — General Practice Physician (ABMS / AOA reference)

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

Est. board-certified rate (General Practice Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (General Practice Physician) — 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).

PATRICIA SYLWESTER, MD is a General Practice Physician provider practicing in OLYMPIA, Washington, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1639188824. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

PATRICIA SYLWESTER, MD appears in the CMS NPPES registry as a General Practice Physician provider holding MD credentials at 1801 W BAY DR NW, OLYMPIA, WA, 98502, with a listed phone of (360) 870-8616. NPI 1639188824 was issued on 08/05/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SYLWESTER 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 91 prescription claims written by this provider, covering 22 Medicare beneficiaries and totaling roughly $4K in drug spend. 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.

General Practice Physician is a mid-sized specialty nationwide, with 16,677 enrolled providers across 56 states and an average of 2,872 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

1801 W BAY DR NW
OLYMPIA, WA 98502

Provider Details

NPI 1639188824
Specialty General Practice Physician
Credentials MD
Gender Female
NPI Issued 08/05/2006

License & disciplinary context — Washington WMC 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 ~34K Washington medical licensees in 2023 — they are NOT specific to PATRICIA SYLWESTER, MD. To verify PATRICIA SYLWESTER, MD's current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases

WMC 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 Washington 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.

91
Total Claims
$4K
Total Drug Cost
22
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
218
Total Day Supply
6,405
Generic Drug Cost
$2K

Patient Demographics

Average Patient Age
71.3 years
Avg HCC Risk Score
0.48

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Levothyroxine Sodium
23
Progesterone
"Progesterone
N/A

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

General Practice Physician Overview

How PATRICIA SYLWESTER, MD fits within the General Practice Physician landscape nationally.

16,677
General Practice Physician Providers in US
56
States with General Practice Physician
2,872
Avg Claims per Provider

PATRICIA SYLWESTER, MD's 91 claims are below the specialty average of 2,872.

Nearby General Practice Physician Providers in Washington

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

Compare General Practice Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is PATRICIA SYLWESTER, MD's specialty?
PATRICIA SYLWESTER, MD specializes in General Practice Physician and practices in OLYMPIA, Washington. Credentials: MD.
How much does PATRICIA SYLWESTER, MD prescribe under Medicare Part D?
In 2023, PATRICIA SYLWESTER, MD wrote 91 Medicare Part D claims totaling $4K in drug costs for 22 beneficiaries.
Where is PATRICIA SYLWESTER, MD located?
PATRICIA SYLWESTER, MD is located at 1801 W BAY DR NW, OLYMPIA, WA, 98502. Phone: (360) 870-8616.
What is PATRICIA SYLWESTER, MD's NPI number?
PATRICIA SYLWESTER, MD's National Provider Identifier (NPI) is 1639188824, issued on 08/05/2006.
How many General Practice Physician providers are there in the US?
There are 16,677 General Practice Physician providers across 56 states in the US. The average General Practice Physician provider writes 2,872 Medicare Part D claims per year.
What drugs does PATRICIA SYLWESTER, MD prescribe most often?
Based on 2023 Medicare Part D data, PATRICIA SYLWESTER, MD's most frequently prescribed drugs include Levothyroxine Sodium, Progesterone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does PATRICIA SYLWESTER, MD accept Medicare?
PATRICIA SYLWESTER, MD appears in CMS Medicare data with 91 Part D claims and 22 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify PATRICIA SYLWESTER, MD's credentials?
PATRICIA SYLWESTER, MD's NPI is 1639188824 with credentials MD. 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