DR. MARGARET ANNE CAULKINS MD
NPI 1780146522
Obstetrics & Gynecology in Washington, DC
About Dr. Margaret Anne Caulkins Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARGARET ANNE CAULKINS MD (NPI 1780146522) is an individual obstetrics & gynecology provider in Washington, District Of Columbia, licensed in District Of Columbia (MD600001951) and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS and is a graduate of University Of South Carolina School Of Medicine, Greenville (2019).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Margaret Anne Caulkins Md 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 Reassignments
3Medicare enrollment records show Margaret Caulkins reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fulton, MD 20759
- Reassigned Medicare billing, District of Columbia enrollment
- Medicare enrollment name: Capital Womens Care LLC
- 186 clinicians in this Medicare group
Waldorf, MD 20603
- Reassigned Medicare billing, Maryland enrollment
- 57 clinicians in this Medicare group
Little Rock, AR 72205
- Reassigned Medicare billing, Arkansas enrollment
- 10 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 20037 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 16
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WASHINGTON, DC 20037
WASHINGTON, DC 20037
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 Margaret Caulkins's NPI number?
The NPI number for Margaret Caulkins is 1780146522. It was assigned to this individual provider in the NPPES registry on April 1, 2019.
Where is Margaret Caulkins located?
Margaret Caulkins practices at 2120 L St NW Ste 700, Washington, DC 20037. The listed phone number is (202) 331-9293.
What is Margaret Caulkins's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Margaret Caulkins enrolled in Medicare?
Yes. Margaret Caulkins 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 organizations bill Medicare for Margaret Caulkins's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Caulkins reassigns Medicare benefits to 3 organizations: Capital Women's Care, L.L.C. (Fulton, MD), Calverthealth Medical Group, LLC (Waldorf, MD) and Arkansas Health Group (Little Rock, AR). 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 Margaret Caulkins'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 Margaret Caulkins was last updated on December 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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. Margaret Anne Caulkins, MD · NPI 1780146522
Obstetrics & Gynecology physician in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since April 1, 2019.
## Identity
- **NPI:** 1780146522 (Entity type: Individual)
- **Enumerated:** April 1, 2019
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** MD600001951 (District of Columbia)
- **Sole proprietor:** No
## Practice location
- **Address:** 2120 L ST NW STE 700, Washington, DC 20037-1543
- **Phone:** (202) 331-9293 · **Fax:** (410) 584-1839
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Capital Women's Care, L.L.C. (NPI 1679534069, Fulton, MD); Calverthealth Medical Group, LLC (NPI 1548007313, Waldorf, MD); Arkansas Health Group (NPI 1760752612, Little Rock, AR) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of South Carolina School Of Medicine, Greenville, class of 2019
## Record status
- **NPPES last updated:** December 10, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1780146522) · Data from the CMS NPPES public registry.