1. Home
  2. Directory
  3. District Of Columbia
  4. Washington
  5. Internal Medicine
  6. NPI Profile

BRETT MAKANA WILL MD
NPI 1043898174
Internal Medicine in Washington, DC

Active since March 30, 2021PECOS Enrolled
3800 RESERVOIR RD NW DEPT OF, WASHINGTON, DC 20007(202) 444-8168(877) 303-1460 Get Directions Write a Review

NPPES record last updated: June 11, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 11, 2024, Mar 30, 2021 (2 updates tracked since 2021).

About Brett Makana Will Md NPPES

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

BRETT MAKANA WILL MD (NPI 1043898174) is an individual internal medicine provider in Washington, District Of Columbia, licensed in District Of Columbia (MD500002779) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1043898174
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameBRETT MAKANA WILLCredential: MD
Location Address3800 RESERVOIR RD NW DEPT OFWashington, DC 20007-2113
Mailing Address3800 Reservoir Rd Nw Dept OfWashington, DC 20007-2113 · (202) 444-8168 · Fax (877) 303-1460
Phone(202) 444-8168
Fax(877) 303-1460
Sole ProprietorNo
Enumeration DateMarch 30, 2021
Last NPPES UpdateJune 11, 20242 updates tracked since enumeration
NPPES CertifiedJune 11, 2024
✔ NPI 1043898174 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in DC · MD500002779
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
3800 RESERVOIR RD NW DEPT OF, Washington, DC 20007
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Brett Makana Will Md 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.

Medicare Billing Reassignment

Medicare enrollment records show Brett Will reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Medstar Medical Group II LLC
Same address
Critical Care Medicine
3800 RESERVOIR RD NW
Washington, DC 20007
  • Reassigned Medicare billing, District of Columbia enrollment
  • 3,530 clinicians in this Medicare group
NPI 1205562816 (703) 558-1403

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

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.

Initial hospital care with moderate level of medical decision making, if using time, at least 75 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.
68 services68 patients

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.

CHARLOTTE CANTRELL HOUSTON MD
Urology
3800 RESERVOIR RD NW DEPT OF
WASHINGTON, DC 20007
District of Columbia (202) 444-4922
DR. JENNA BEKENY MD
Student in an Organized Health Care Education/Training Program
3800 RESERVOIR RD NW DEPT OF
WASHINGTON, DC 20007
District of Columbia (202) 444-7563
ERIKA GRETEL FLEMING MD
Student in an Organized Health Care Education/Training Program
3800 RESERVOIR RD NW DEPT OF
WASHINGTON, DC 20007
District of Columbia (202) 741-1250
JEFFREY RISKIN MD
Student in an Organized Health Care Education/Training Program
3800 RESERVOIR RD NW DEPT OF
WASHINGTON, DC 20007
District of Columbia (202) 444-8168
DR. SARA KIPARIZOSKA MD
Internal Medicine
3800 RESERVOIR RD NW DEPT OF
WASHINGTON, DC 20007
District of Columbia (202) 444-8168
DR. GREGORY THOMAS PERRAUT MD
Student in an Organized Health Care Education/Training Program
3800 RESERVOIR RD NW DEPT OF
WASHINGTON, DC 20007
District of Columbia (202) 444-8766
DR. BENJAMIN KARL SUEHLER MD
Student in an Organized Health Care Education/Training Program
3800 RESERVOIR RD NW DEPT OF
WASHINGTON, DC 20007
District of Columbia (202) 444-3314
SAM W POSTMA MD
Student in an Organized Health Care Education/Training Program
3800 RESERVOIR RD NW DEPT OF, DEPARTMENT OF ANESTHESIOLOGY
WASHINGTON, DC 20007
District of Columbia (202) 444-8556

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 Brett Will's NPI number?

The NPI number for Brett Will is 1043898174. It was assigned to this individual provider in the NPPES registry on March 30, 2021.

Where is Brett Will located?

Brett Will practices at 3800 Reservoir Rd NW Dept Of, Washington, DC 20007. The listed phone number is (202) 444-8168.

What is Brett Will's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Brett Will enrolled in Medicare?

Yes. Brett Will is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Brett Will's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Brett Will reassigns Medicare benefits to Medstar Medical Group II LLC (Washington, DC). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Brett Will's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Brett Will was last updated on June 11, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.