ISHANI MAHI MBBS
NPI 1497442354
Hospitalist in Washington, DC

Active since April 20, 2023PECOS EnrolledAccepts Medicare Assignment
110 IRVING ST., NW MEDSTAR WASHINGTON HOSPITAL CENTER,, DEPARTMENT OF INTERNAL MEDICINE, WASHINGTON, DC 20010(202) 877-2835(202) 877-8288 Get Directions Write a Review

NPPES record last updated: May 21, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 21, 2026, May 4, 2026, Apr 26, 2026 and 1 more (4 updates tracked since 2023).

About Ishani Mahi Mbbs NPPES

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

ISHANI MAHI MBBS (NPI 1497442354) is an individual hospitalist provider in Washington, District Of Columbia, licensed in District Of Columbia (MD600005671) and active in the NPI registry since April 2023. She is enrolled in Medicare PECOS and is a graduate of Other (2023).

NPPES Registry Identity

NPI1497442354
Entity TypeIndividualFemale
Primary Taxonomy208M00000X
Provider Legal NameISHANI MAHICredential: MBBS
Location Address110 IRVING ST., NW MEDSTAR WASHINGTON HOSPITAL CENTER,, DEPARTMENT OF INTERNAL MEDICINEWashington, DC 20010
Mailing Address110 Irving St., Nw Medstar Washington Hospital Center,, Department Of Internal MedicineWashington, DC 20010 · (202) 877-2835 · Fax (202) 877-8288
Fax(202) 877-8288
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateApril 20, 2023
Last NPPES UpdateMay 21, 20264 updates tracked since enumeration
NPPES CertifiedMay 21, 2026
✔ NPI 1497442354 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in DC · MD600005671
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedInternal MedicineTaxonomy 207R00000X · License MD600005671 (DC)
110 IRVING ST., NW MEDSTAR WASHINGTON HOSPITAL CENTER,, Washington, DC 20010

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ishani Mahi Mbbs 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 ID4789148164
PECOS Enrollment IDI20260716001080
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 Ishani Mahi reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Anesthesiology
110 IRVING ST NW
Washington, DC 20010
  • Reassigned Medicare billing, District of Columbia enrollment
  • 3,530 clinicians in this Medicare group

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20010 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.

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 Ishani Mahi's NPI number?

The NPI number for Ishani Mahi is 1497442354. It was assigned to this individual provider in the NPPES registry on April 20, 2023.

Where is Ishani Mahi located?

Ishani Mahi practices at 110 Irving St., NW Medstar Washington Hospital Center, Department Of Internal Medicine, Washington, DC 20010. The listed phone number is (202) 877-2835.

What is Ishani Mahi's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Ishani Mahi enrolled in Medicare?

Yes. Ishani Mahi 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.

Which organization bills Medicare for Ishani Mahi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ishani Mahi 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 Ishani Mahi'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 Ishani Mahi was last updated on May 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.