2026 NPPES data Pharmacotherapy Pharmacist NPI 1770797748 PHARMD.
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MARGARET MEHL, PHARMD.

Pharmacotherapy Pharmacist in RENTON, 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
297
Medicare Part D claims · 153 beneficiaries · Pharmacotherapy Pharmacist avg: 397

What the federal data shows

MARGARET MEHL, PHARMD. filed 297 Medicare Part D claims in 2023 as a Pharmacotherapy Pharmacist in RENTON, Washington.

297
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.

MARGARET MEHL, PHARMD.'s Medicare Part D volume vs every U.S. prescriber

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

297 49th percentile higher than 49% 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 MARGARET MEHL, PHARMD.?

Quality data not reported

NPI registry status

Active

Issued 05/09/2007

NPI 1770797748

Primary specialty

Pharmacotherapy Pharmacist

Mid-sized

5,925 US NPIs in this specialty

Medicare Part D claims

297 25% vs specialty avg

2023 prescription claims

Specialty avg: 397

Specialty distribution in Washington

How Pharmacotherapy Pharmacist compares to other specialties among Washington providers

Washington providers

Pharmacotherapy Pharmacist share within Washington

1. Pharmacotherapy Pharmacist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Pharmacotherapy Pharmacist share within Washington

Specialty board-certification context

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

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

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

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

MARGARET MEHL, PHARMD. is a Pharmacotherapy Pharmacist provider practicing in RENTON, Washington, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PHARMD.. NPI: 1770797748. 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.

MARGARET MEHL, PHARMD. appears in the CMS NPPES registry as a Pharmacotherapy Pharmacist provider holding PHARMD. credentials at 400 S 43RD ST, RENTON, WA, 98055, with a listed phone of (425) 228-3440. NPI 1770797748 was issued on 05/09/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MEHL 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 297 prescription claims written by this provider, covering 153 Medicare beneficiaries and totaling roughly $5K 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.

Pharmacotherapy Pharmacist is a mid-sized specialty nationwide, with 5,925 enrolled providers across 53 states and an average of 397 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

400 S 43RD ST
RENTON, WA 98055

Provider Details

NPI 1770797748
Specialty Pharmacotherapy Pharmacist
Credentials PHARMD.
Gender Female
NPI Issued 05/09/2007

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 MARGARET MEHL, PHARMD.. To verify MARGARET MEHL, PHARMD.'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.

297
Total Claims
$5K
Total Drug Cost
153
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
699
Total Day Supply
20,234
Generic Drug Cost
$5K

Patient Demographics

Average Patient Age
77.2 years
Avg HCC Risk Score
1.95
Gender Split
51% female / 49% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Warfarin Sodium
283

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

Pharmacotherapy Pharmacist Overview

How MARGARET MEHL, PHARMD. fits within the Pharmacotherapy Pharmacist landscape nationally.

5,925
Pharmacotherapy Pharmacist Providers in US
53
States with Pharmacotherapy Pharmacist
397
Avg Claims per Provider

MARGARET MEHL, PHARMD.'s 297 claims are below the specialty average of 397.

Nearby Pharmacotherapy Pharmacist Providers in Washington

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

Compare Pharmacotherapy Pharmacist nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARGARET MEHL, PHARMD.'s specialty?
MARGARET MEHL, PHARMD. specializes in Pharmacotherapy Pharmacist and practices in RENTON, Washington. Credentials: PHARMD..
How much does MARGARET MEHL, PHARMD. prescribe under Medicare Part D?
In 2023, MARGARET MEHL, PHARMD. wrote 297 Medicare Part D claims totaling $5K in drug costs for 153 beneficiaries.
Where is MARGARET MEHL, PHARMD. located?
MARGARET MEHL, PHARMD. is located at 400 S 43RD ST, RENTON, WA, 98055. Phone: (425) 228-3440.
What is MARGARET MEHL, PHARMD.'s NPI number?
MARGARET MEHL, PHARMD.'s National Provider Identifier (NPI) is 1770797748, issued on 05/09/2007.
How many Pharmacotherapy Pharmacist providers are there in the US?
There are 5,925 Pharmacotherapy Pharmacist providers across 53 states in the US. The average Pharmacotherapy Pharmacist provider writes 397 Medicare Part D claims per year.
What drugs does MARGARET MEHL, PHARMD. prescribe most often?
Based on 2023 Medicare Part D data, MARGARET MEHL, PHARMD.'s most frequently prescribed drugs include Warfarin Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARGARET MEHL, PHARMD. accept Medicare?
MARGARET MEHL, PHARMD. appears in CMS Medicare data with 297 Part D claims and 153 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARGARET MEHL, PHARMD.'s credentials?
MARGARET MEHL, PHARMD.'s NPI is 1770797748 with credentials PHARMD.. 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