WILLIAM WILL KUENSTNER
NPI 1225615123
Internal Medicine - Endocrinology, Diabetes & Metabolism in Washington, DC

Q: What is the provider's specialty?

The provider's specialty is Internal Medicine with taxonomy code 207RE0101X and a focus in Endocrinology, Diabetes & Metabolism.

Active since March 26, 2021PECOS Enrolled

3800 RESERVOIR RD NW, WASHINGTON, DC 20007(202) 687-2818(877) 485-1479 Get Directions Write a Review

NPPES record last updated: June 10, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

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About William Will Kuenstner NPPES

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

WILLIAM WILL KUENSTNER (NPI 1225615123) is an individual endocrinology, diabetes & metabolism provider in Washington, District Of Columbia, licensed in District Of Columbia (MD500003333) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1225615123

Entity TypeIndividualMale

Primary Taxonomy207RE0101X

Provider Legal NameWILLIAM WILL KUENSTNER

Location Address3800 RESERVOIR RD NWWashington, DC 20007-2113

Mailing Address3800 Reservoir Rd Nw, Pasquerilla Healthcare CenterWashington, DC 20007-2113 · (202) 687-2818 · Fax (877) 485-1479

Phone(202) 687-2818

Fax(877) 485-1479

Sole ProprietorNo

Enumeration DateMarch 26, 2021

Last NPPES UpdateJune 10, 2026

NPPES CertifiedJune 10, 2026

✔ NPI 1225615123 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians

Taxonomy Code207RE0101X

License✔ Licensed in DC · MD500003333

Definition

An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

3800 RESERVOIR RD NW, Washington, DC 20007

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William Will Kuenstner is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20007 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

$147.85 typical visit price

range $65.18 – $194.86

Typical copayment $36.96 (range $16.29 – $48.71)

Most-billed visit code 99204

Established Patient

$113.72 typical visit price

range $21.40 – $158.88

Typical copayment $28.43 (range $5.35 – $39.72)

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.