JONATHAN ASHLEY JEFFERSON
NPI 1710062526
Internal Medicine - Nephrology in Seattle, WA

Active since October 27, 2006PECOS EnrolledAccepts Medicare Assignment
93.09/100
CMS Quality Rating
UNIVERSITY OF WASHINGTON MEDICAL CTR, 1959 NE PACIFIC ST, SEATTLE, WA 98195(206) 598-5068 Get Directions Write a Review

NPPES record last updated: January 13, 2012. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Jonathan Ashley Jefferson NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JONATHAN ASHLEY JEFFERSON (NPI 1710062526) is an individual nephrology provider in Seattle, Washington, licensed in Washington (MD00041603) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with University Of Washington Medical Ctr, and is a graduate of Other (1989).

NPPES Registry Identity

NPI1710062526
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameJONATHAN ASHLEY JEFFERSON
Location AddressUNIVERSITY OF WASHINGTON MEDICAL CTR, 1959 NE PACIFIC STSeattle, WA 98195-6166
Mailing AddressPo Box 50095Seattle, WA 98145-5095 · (206) 543-6420
Sole ProprietorNo
Medical School CMSOtherGraduated 1989
Enumeration DateOctober 27, 2006
Last NPPES UpdateJanuary 13, 2012
NPI 1710062526 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License Licensed in WA · MD00041603
Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

UNIVERSITY OF WASHINGTON MEDICAL CTR, Seattle, WA 98195

Other Identifiers 5

Other221140Internal Id-motor Vehicle Id
Medicaid1710062526WA
Medicare PINAB33046WA
Medicare UPINH71195
Other0231415WA · L&i

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Jonathan Ashley Jefferson is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID840483038
PECOS Enrollment IDI20101020000656
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 8

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Follow-up hospital inpatient care per day, typically 25 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
153 services73 patients
Established patient office or other outpatient visit, 30-39 minutes 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
85 services57 patients
Established patient office or other outpatient visit, 40-54 minutes 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
77 services46 patients
Follow-up hospital inpatient care per day, typically 35 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
75 services45 patients
Hemodialysis procedure with physician evaluation 90935
Hemodialysis is a treatment that uses a machine to filter waste and excess fluid from your blood when your kidneys can't. A physician checks your health before, during, and after the procedure to ensure it's working effectively for you.
64 services30 patients
Initial hospital inpatient care per day, typically 70 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
26 services24 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

University Of Washington Medical Ctr

Acute Care Hospitals · Seattle, WA
3/5 CMS rating
OwnershipGovernment - State
CMS Certification Number500008
Location1959 NE Pacific St Box 356151Seattle, WA 98195 · King County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98195 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$143.76 typical visit price
range $63.67 – $189.37
Typical copayment $35.94 (range $15.91 – $47.34)
Most-billed visit code 99204
Established Patient
$111.00 typical visit price
range $21.12 – $155.00
Typical copayment $27.75 (range $5.28 – $38.75)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

93.09/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality73.95
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 8

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Azathioprine, oral, 50 mg J7500
Treatment-Treatment - Miscellaneous · category RX029N
1 supplier11 claims660 services$1.13 avg. paid by Medicare
Tacrolimus, extended release, (envarsus xr), oral, 0.25 mg J7503
Treatment-Chemotherapy · category RH002N
2 suppliers41 claims11,700 services$1.21 avg. paid by Medicare
Tacrolimus, immediate release, oral, 1 mg J7507
Treatment-Treatment - Miscellaneous · category RX029N
10 suppliers129 claims9,825 services$0.30 avg. paid by Medicare
Prednisone, immediate release or delayed release, oral, 1 mg J7512
Treatment-Treatment - Miscellaneous · category RX029N
5 suppliers38 claims5,460 services$0.01 avg. paid by Medicare
Mycophenolate mofetil, oral, 250 mg J7517
Treatment-Treatment - Miscellaneous · category RX029N
2 suppliers11 claims1,020 services$0.18 avg. paid by Medicare
Mycophenolic acid, oral, 180 mg J7518
Treatment-Treatment - Miscellaneous · category RX029N
7 suppliers94 claims7,009 services$0.90 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Pathology (Clinical Pathology/Laboratory Medicine)
UNIVERSITY OF WASHINGTON MEDICAL CTR, 1959 NE PACIFIC ST
SEATTLE, WA 98195
Internal Medicine (Endocrinology, Diabetes & Metabolism)
UNIVERSITY OF WASHINGTON MEDICAL CTR, 1959 NE PACIFIC ST
SEATTLE, WA 98195
Physician Assistant
UNIVERSITY OF WASHINGTON MEDICAL CTR, 1959 NE PACIFIC ST
SEATTLE, WA 98195
Nurse Practitioner
UNIVERSITY OF WASHINGTON MEDICAL CTR, 1959 NE PACIFIC ST
SEATTLE, WA 98195
Internal Medicine (Clinical Cardiac Electrophysiology)
UNIVERSITY OF WASHINGTON MEDICAL CTR, 1959 NE PACIFIC ST
SEATTLE, WA 98195
Physician Assistant
UNIVERSITY OF WASHINGTON MEDICAL CTR, 1959 NE PACIFIC ST
SEATTLE, WA 98195
Anesthesiology
UNIVERSITY OF WASHINGTON MEDICAL CTR, 1959 NE PACIFIC ST
SEATTLE, WA 98195
Pathology (Clinical Pathology/Laboratory Medicine)
UNIVERSITY OF WASHINGTON MEDICAL CTR, 1959 NE PACIFIC ST
SEATTLE, WA 98195

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Jonathan Jefferson's NPI number?

The NPI number for Jonathan Jefferson is 1710062526. It was assigned to this individual provider in the NPPES registry on October 27, 2006.

Where is Jonathan Jefferson located?

Jonathan Jefferson practices at University Of Washington Medical Ctr 1959 NE Pacific St, Seattle, WA 98195. The listed phone number is (206) 598-5068.

What is Jonathan Jefferson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Jonathan Jefferson enrolled in Medicare?

Yes. Jonathan Jefferson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Jonathan Jefferson accept?

Health plans from PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Jonathan Jefferson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Jonathan Jefferson affiliated with any hospitals?

According to CMS data, Jonathan Jefferson is affiliated with University Of Washington Medical Ctr.

When was this NPI record last updated?

The NPPES record for Jonathan Jefferson was last updated on January 13, 2012. NPI Profile syncs with the weekly NPPES data releases published by CMS.