ADAM C. DIEHL MD
NPI 1942549340
Internal Medicine - Hematology & Oncology in Seattle, WA

Q: What is Adam Diehl's NPI number?

The NPI number for Adam Diehl is 1942549340. It was assigned to this individual provider in the NPPES registry on February 5, 2013.

Q: What is Adam Diehl's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Q: When was this NPI record last updated?

The NPPES record for Adam Diehl was last updated on June 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since February 05, 2013PECOS EnrolledAccepts Medicare Assignment

93.09/100

CMS Quality Rating

825 EASTLAKE AVE. E, SEATTLE, WA 98109(206) 520-5000 Get Directions Write a Review

NPPES record last updated: June 22, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Adam C. Diehl Md NPPES

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

ADAM C. DIEHL MD (NPI 1942549340) is an individual hematology & oncology provider in Seattle, Washington, licensed in Washington (MD60829130) and active in the NPI registry since February 2013. He is enrolled in Medicare PECOS, is affiliated with Evergreenhealth Monroe, and is a graduate of Johns Hopkins University School Of Medicine (2015).

NPPES Registry Identity

NPI1942549340

Entity TypeIndividualMale

Primary Taxonomy207RH0003X

Provider Legal NameADAM C. DIEHLCredential: MD

Location Address825 EASTLAKE AVE. ESeattle, WA 98109-1023

Mailing AddressPo Box 50095Seattle, WA 98145-5095

Phone(206) 520-5000

Sole ProprietorNo

Medical School CMSJohns Hopkins University School Of MedicineGraduated 2015

Enumeration DateFebruary 5, 2013

Last NPPES UpdateJune 22, 2021

NPPES CertifiedJune 22, 2021

✔ NPI 1942549340 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

License✔ Licensed in WA · MD60829130

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

825 EASTLAKE AVE. E, Seattle, WA 98109

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.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

Adam C. Diehl Md 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 ID7517286099

PECOS Enrollment IDI20210617001177

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 7

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.

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

431 services77 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 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.

298 services120 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 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.

95 services65 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

37 services37 patients

Telephone medical discussion with physician, 5-10 minutes 99441

A telephone medical discussion with a physician is a brief, 5-10 minute call where you can discuss your health concerns. It's a convenient way to receive medical advice without needing to visit a clinic. It's important to prepare questions in advance to make the most of this time.

25 services19 patients

Telephone medical discussion with physician, 11-20 minutes 99442

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

15 services13 patients

Hospital Affiliations CMS Care Compare 2

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

Evergreenhealth Monroe

Acute Care Hospitals · Monroe, WA

OwnershipGovernment - Hospital District or Authority

CMS Certification Number500084

Location14701 179th Ave SEMonroe, WA 98272 · Snohomish County

Emergency services

Evergreenhealth Medical Center

Acute Care Hospitals · Kirkland, WA

5/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number500124

Location12040 NE 128th StreetKirkland, WA 98034 · King County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98109 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

$189.37 typical visit price

range $63.67 – $189.37

Typical copayment $47.34 (range $15.91 – $47.34)

Most-billed visit code 99205

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

Quality

73.95

Promoting Interoperability

100

Improvement Activities

Referred Medical Equipment & Supplies CMS DME claims 3

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

Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4035

Other-Enteral and Parenteral · category OB006N

1 supplier11 claims334 services$4.39 avg. paid by Medicare

Enteral formula, nutritionally complete with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4150

Other-Enteral and Parenteral · category OB006N

1 supplier12 claims4,435 services$0.33 avg. paid by Medicare

Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511

Treatment-Chemotherapy · category RH012N

2 suppliers11 claims11 services$18.99 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 5

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

MARGARET A. GOSNELL ARNP

Nurse Practitioner