DR. MARK HATHAWAY MD
NPI 1720068133
Obstetrics & Gynecology in Washington, DC
About Dr. Mark Hathaway Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK HATHAWAY MD (NPI 1720068133) is an individual obstetrics & gynecology provider in Washington, District Of Columbia, licensed in District Of Columbia (MD21559) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in Montgomery Village.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Mark Hathaway Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Mark Hathaway reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Washington, DC 20009
- Reassigned Medicare billing, District of Columbia enrollment
- 343 clinicians in this Medicare group
Chevy Chase, MD 20815
- Reassigned Medicare billing, District of Columbia enrollment
- 3 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 20002 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.
WASHINGTON, DC 20002
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 Mark Hathaway's NPI number?
The NPI number for Mark Hathaway is 1720068133. It was assigned to this individual provider in the NPPES registry on January 20, 2006.
Where is Mark Hathaway located?
Mark Hathaway practices at 1225 4th St NE, Washington, DC 20002. The listed phone number is (202) 347-8512.
What is Mark Hathaway's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Mark Hathaway enrolled in Medicare?
Yes. Mark Hathaway is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Mark Hathaway's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Hathaway reassigns Medicare benefits to 2 organizations: Unity Health Care, Inc. (Washington, DC) and Femhealth Usa, Inc (Chevy Chase, MD). 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 Mark Hathaway'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 Mark Hathaway was last updated on March 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Dr. Mark Hathaway, MD · NPI 1720068133
Obstetrics & Gynecology physician in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since January 20, 2006.
## Identity
- **NPI:** 1720068133 (Entity type: Individual)
- **Enumerated:** January 20, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** MD21559 (District of Columbia)
- **Sole proprietor:** No
## Practice location
- **Address:** 1225 4TH ST NE, Washington, DC 20002-3431
- **Phone:** (202) 347-8512
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Unity Health Care, Inc. (NPI 1093894172, Washington, DC); Femhealth Usa, Inc (NPI 1578960548, Chevy Chase, MD) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 21, 2025
- **Other identifiers:** Medicaid 025687900 (DC); Medicaid 759210800 (DC)
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Source: [NPI Profile](https://npiprofile.com/npi/1720068133) · Data from the CMS NPPES public registry.