2026 NPPES data Gerontology Nurse Practitioner NPI 1124792148 RN, MSN, NP-C, ARNP
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JONATHAN HARPER, RN, MSN, NP-C, ARNP

Gerontology Nurse Practitioner in SEATTLE, 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
3K
Medicare Part D claims · 225 beneficiaries · Gerontology Nurse Practitioner avg: 1K
Generic prescribing
81%
generic claims · 19% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: JONATHAN HARPER, RN, MSN, NP-C, ARNP is a Gerontology Nurse Practitioner ([object Object]) practicing in SEATTLE, Washington with a Medicare Part D prescribing footprint of 3K claims across 225 beneficiaries — 19% brand-name prescribing .

What stands out: JONATHAN HARPER, RN, MSN, NP-C, ARNP filed 3,082 Medicare Part D claims in 2023 across SEATTLE, Washington. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

JONATHAN HARPER, RN, MSN, NP-C, ARNP at a glance

Quality data not reported

NPI registry status

Active

Issued 08/03/2021

NPI 1124792148

Primary specialty

Gerontology Nurse Practitioner

Mid-sized

9,625 US NPIs in this specialty

Medicare Part D claims

3,082 140% vs specialty avg

2023 prescription claims

Specialty avg: 1,283

Specialty distribution in Washington

How Gerontology Nurse Practitioner compares to other specialties among Washington providers

Washington providers

Gerontology Nurse Practitioner share within Washington

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

Specialty board-certification context

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

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

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

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

JONATHAN HARPER, RN, MSN, NP-C, ARNP is a Gerontology Nurse Practitioner provider practicing in SEATTLE, Washington, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: RN, MSN, NP-C, ARNP. NPI: 1124792148. 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.

JONATHAN HARPER, RN, MSN, NP-C, ARNP appears in the CMS NPPES registry as a Gerontology Nurse Practitioner provider holding RN, MSN, NP-C, ARNP credentials at 4515 MARTIN LUTHER KING JR WAY S STE 100, SEATTLE, WA, 98108, with a listed phone of (206) 320-5325. NPI 1124792148 was issued on 08/03/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HARPER 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 3,082 prescription claims written by this provider, covering 225 Medicare beneficiaries and totaling roughly $428K in drug spend, split 19% brand-name and 81% generic by claim count, with an opioid prescribing rate of 8.2%. 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.

Gerontology Nurse Practitioner is a mid-sized specialty nationwide, with 9,625 enrolled providers across 54 states and an average of 1,283 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

4515 MARTIN LUTHER KING JR WAY S STE 100
SEATTLE, WA 98108

Provider Details

NPI 1124792148
Specialty Gerontology Nurse Practitioner
Credentials RN, MSN, NP-C, ARNP
Gender Male
NPI Issued 08/03/2021

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 JONATHAN HARPER, RN, MSN, NP-C, ARNP. To verify JONATHAN HARPER, RN, MSN, NP-C, ARNP'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.

Brand vs generic prescribing mix · Typical

JONATHAN HARPER, RN, MSN, NP-C, ARNP — brand share 19.0%
Specialty average (est.)

19% brand-name claims vs 81% generic, on 3,082 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.

3,082
Total Claims
$428K
Total Drug Cost
225
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,238
Total Day Supply
82,130
Brand vs Generic
19% brand / 81% generic
Brand Drug Cost
$340K
Generic Drug Cost
$86K
Opioid Claims
254 (8.2% rate)
Antibiotic Claims
90

Patient Demographics

Average Patient Age
77.9 years
Avg HCC Risk Score
3.15
Gender Split
71% female / 29% male
Age Distribution
<65: 12, 65-74: 73, 75-84: 86, 85+: 54

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Amlodipine Besylate
142
Atorvastatin Calcium
132
Oxycodone Hcl
131
Gabapentin
119
Lisinopril
118
Levothyroxine Sodium
71
Furosemide
63
Pravastatin Sodium
58
Metoprolol Succinate
57
Jardiance
Empagliflozin
53

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

Gerontology Nurse Practitioner Overview

How JONATHAN HARPER, RN, MSN, NP-C, ARNP fits within the Gerontology Nurse Practitioner landscape nationally.

9,625
Gerontology Nurse Practitioner Providers in US
54
States with Gerontology Nurse Practitioner
1,283
Avg Claims per Provider

JONATHAN HARPER, RN, MSN, NP-C, ARNP's 3,082 claims are above the specialty average of 1,283.

Nearby Gerontology Nurse Practitioner Providers in Washington

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

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

Frequently Asked Questions

What is JONATHAN HARPER, RN, MSN, NP-C, ARNP's specialty?
JONATHAN HARPER, RN, MSN, NP-C, ARNP specializes in Gerontology Nurse Practitioner and practices in SEATTLE, Washington. Credentials: RN, MSN, NP-C, ARNP.
How much does JONATHAN HARPER, RN, MSN, NP-C, ARNP prescribe under Medicare Part D?
In 2023, JONATHAN HARPER, RN, MSN, NP-C, ARNP wrote 3,082 Medicare Part D claims totaling $428K in drug costs for 225 beneficiaries.
Where is JONATHAN HARPER, RN, MSN, NP-C, ARNP located?
JONATHAN HARPER, RN, MSN, NP-C, ARNP is located at 4515 MARTIN LUTHER KING JR WAY S STE 100, SEATTLE, WA, 98108. Phone: (206) 320-5325.
What is JONATHAN HARPER, RN, MSN, NP-C, ARNP's NPI number?
JONATHAN HARPER, RN, MSN, NP-C, ARNP's National Provider Identifier (NPI) is 1124792148, issued on 08/03/2021.
Does JONATHAN HARPER, RN, MSN, NP-C, ARNP prescribe more brand-name or generic drugs?
JONATHAN HARPER, RN, MSN, NP-C, ARNP's prescribing is 19% brand-name and 81% generic drugs by claim count, with $340K in brand drug costs.
Does JONATHAN HARPER, RN, MSN, NP-C, ARNP prescribe opioids?
Yes, JONATHAN HARPER, RN, MSN, NP-C, ARNP had 254 opioid claims in 2023 with an opioid prescribing rate of 8.2%.
How many Gerontology Nurse Practitioner providers are there in the US?
There are 9,625 Gerontology Nurse Practitioner providers across 54 states in the US. The average Gerontology Nurse Practitioner provider writes 1,283 Medicare Part D claims per year.
What drugs does JONATHAN HARPER, RN, MSN, NP-C, ARNP prescribe most often?
Based on 2023 Medicare Part D data, JONATHAN HARPER, RN, MSN, NP-C, ARNP's most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JONATHAN HARPER, RN, MSN, NP-C, ARNP accept Medicare?
JONATHAN HARPER, RN, MSN, NP-C, ARNP appears in CMS Medicare data with 3,082 Part D claims and 225 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JONATHAN HARPER, RN, MSN, NP-C, ARNP's credentials?
JONATHAN HARPER, RN, MSN, NP-C, ARNP's NPI is 1124792148 with credentials RN, MSN, NP-C, ARNP. 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