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KHAIRUNNISA MASOOD MD
NPI 1093731499
Internal Medicine in Fairfax, VA

Active since July 15, 2006PECOS Enrolled
3930 PENDER DR STE 230, FAIRFAX, VA 22030(703) 620-6221(703) 620-6628 Get Directions Write a Review

NPPES record last updated: November 3, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Nov 3, 2025, Jun 13, 2025 (2 updates tracked since 2025).

About Khairunnisa Masood Md NPPES

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

KHAIRUNNISA MASOOD MD (NPI 1093731499) is an individual internal medicine provider in Fairfax, Virginia, licensed in Virginia (0101237882) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1998).

NPPES Registry Identity

NPI1093731499
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameKHAIRUNNISA MASOODCredential: MD
Location Address3930 PENDER DR STE 230Fairfax, VA 22030-0992
Mailing Address4879 Mayde CtFairfax, VA 22030-6618 · (703) 620-6221 · Fax (703) 620-6628
Phone(703) 620-6221
Fax(703) 620-6628
Sole ProprietorNo
Medical School CMSOtherGraduated 1998
Enumeration DateJuly 15, 2006
Last NPPES UpdateNovember 3, 20252 updates tracked since enumeration
NPPES CertifiedNovember 3, 2025
✔ NPI 1093731499 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in VA · 0101237882
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.
3930 PENDER DR STE 230, Fairfax, VA 22030
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Other Identifiers 1

Medicaid010300363VA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Khairunnisa Masood Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2567461197
PECOS Enrollment IDI20061208000530
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 Reassignments

2

Medicare enrollment records show Khairunnisa Masood reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Active Medical Care LLC
Same address
Internal Medicine
3930 PENDER DR STE 230
Fairfax, VA 22030
  • Reassigned Medicare billing, District of Columbia enrollment
NPI 1073757662 (703) 620-6221
Advanced Internal Medicine, Inc.
Same address
Specialist
3930 PENDER DR, SUITE 230
Fairfax, VA 22030
  • Reassigned Medicare billing, District of Columbia enrollment
  • 3 clinicians in this Medicare group
NPI 1366468779 (703) 620-6221

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 22030 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 2

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

ACTIVE MEDICAL CARE LLC
Internal Medicine
3930 PENDER DR STE 230
FAIRFAX, VA 22030
Fairfax City (703) 620-6221
MS. DARCELLA BLAND MSN, FNP-BC, NP-C
Nurse Practitioner (Family)
3930 PENDER DR STE 230
FAIRFAX, VA 22030
Fairfax City (703) 620-6221

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 Khairunnisa Masood's NPI number?

The NPI number for Khairunnisa Masood is 1093731499. It was assigned to this individual provider in the NPPES registry on July 15, 2006.

Where is Khairunnisa Masood located?

Khairunnisa Masood practices at 3930 Pender Dr Ste 230, Fairfax, VA 22030. The listed phone number is (703) 620-6221.

What is Khairunnisa Masood's specialty?

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

Is Khairunnisa Masood enrolled in Medicare?

Yes. Khairunnisa Masood is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Khairunnisa Masood's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Khairunnisa Masood reassigns Medicare benefits to 2 organizations: Active Medical Care LLC (Fairfax, VA) and Advanced Internal Medicine, Inc. (Fairfax, VA). Each 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 Khairunnisa Masood'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 Khairunnisa Masood was last updated on November 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.