ISAAC MCCOOL
NPI 1528564200
Pathology - Hematology in Bethesda, MD
About Isaac Mccool NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ISAAC MCCOOL (NPI 1528564200) is an individual hematology provider in Bethesda, Maryland, licensed in Virginia (0101268657) and active in the NPI registry since April 2018. He is enrolled in Medicare PECOS, is affiliated with Inova Alexandria Hospital, and is a graduate of Uniformed Services Uhs Fe Hebert School Of Med (2018).
NPPES Registry Identity
Specialties & Licenses 2
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
Isaac Mccool 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.
Medicare Billing Reassignment
Medicare enrollment records show Isaac Mccool reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Falls Church, VA 22042
- Reassigned Medicare billing, District of Columbia and Virginia enrollments
- 57 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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Inova Alexandria Hospital
Acute Care Hospitals · Alexandria, VAInova Loudoun Hospital
Acute Care Hospitals · Leesburg, VAInova Fairfax Hospital
Acute Care Hospitals · Falls Church, VAInova Fair Oaks Hospital
Acute Care Hospitals · Fairfax, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20889 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
BETHESDA, MD 20889
BETHESDA, MD 20889
BETHESDA, MD 20889
BETHESDA, MD 20889
BETHESDA, MD 20889
BETHESDA, MD 20889
BETHESDA, MD 20889
BETHESDA, MD 20889
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 Isaac Mccool's NPI number?
The NPI number for Isaac Mccool is 1528564200. It was assigned to this individual provider in the NPPES registry on April 2, 2018.
Where is Isaac Mccool located?
Isaac Mccool practices at 8901 Wisconsin Avenue, Bethesda, MD 20889. The listed phone number is (301) 295-4000.
What is Isaac Mccool's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Hematology, with taxonomy code 207ZH0000X.
Is Isaac Mccool enrolled in Medicare?
Yes. Isaac Mccool 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 Isaac Mccool's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Isaac Mccool reassigns Medicare benefits to Inova Health Care Services - Pathology (Falls Church, VA). 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 Isaac Mccool's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Isaac Mccool affiliated with any hospitals?
According to CMS data, Isaac Mccool is affiliated with Inova Alexandria Hospital, Inova Loudoun Hospital, Inova Fairfax Hospital and Inova Fair Oaks Hospital.
When was this NPI record last updated?
The NPPES record for Isaac Mccool was last updated on June 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Isaac Mccool · NPI 1528564200
Hematology physician in Bethesda, Maryland. Individual provider, active in the CMS NPPES registry since April 2, 2018.
## Identity
- **NPI:** 1528564200 (Entity type: Individual)
- **Enumerated:** April 2, 2018
- **Primary specialty:** Pathology - Hematology · taxonomy 207ZH0000X
- **State license:** 0101268657 (Virginia)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 8901 WISCONSIN AVENUE, Bethesda, MD 20889-5095
- **Phone:** (301) 295-4000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Inova Health Care Services - Pathology (NPI 1427369578, Falls Church, VA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Uniformed Services Uhs Fe Hebert School Of Med, class of 2018
## Record status
- **NPPES last updated:** June 17, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1528564200) · Data from the CMS NPPES public registry.