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

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.

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.

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.

JOHN HUGH LYNCH MD
Urology
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
District of Columbia (202) 444-4922
AGNIESZKA ZOFIA PLUTA MD
Pediatrics (Pediatric Gastroenterology)
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
District of Columbia (202) 444-4673
MIRANDA JEANETTE ADAMS MS
Audiologist
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
District of Columbia (202) 687-5176
VALIOLLAH ABBASSI
Pediatrics (Pediatric Endocrinology)
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
District of Columbia (202) 444-8881
JAMES BARANIUK MD
Internal Medicine (Allergy & Immunology)
3800 RESERVOIR RD NW, RM B-105 LOWER LEVEL KOBER-COGAN BLDG, GEORGETOWN UNIV
WASHINGTON, DC 20007
District of Columbia (202) 687-2906
CARRIE BOWMAN-DALLEY
Nurse Anesthetist, Certified Registered
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
District of Columbia (202) 444-8640
MEGAN ELAINE BREEN
Obstetrics & Gynecology
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
District of Columbia (202) 444-8531
JOHN BUEK
Obstetrics & Gynecology
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
District of Columbia (202) 444-8531

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 William Kuenstner's NPI number?

The NPI number for William Kuenstner is 1225615123. It was assigned to this individual provider in the NPPES registry on March 26, 2021.

Where is William Kuenstner located?

William Kuenstner practices at 3800 Reservoir Rd NW, Washington, DC 20007. The listed phone number is (202) 687-2818.

What is William Kuenstner's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is William Kuenstner enrolled in Medicare?

Yes. William Kuenstner is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for William Kuenstner was last updated on June 10, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.