ANDREW M PATAKI MD
NPI 1225097637
Obstetrics & Gynecology in Ellicott City, MD
About Andrew M Pataki Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANDREW M PATAKI MD (NPI 1225097637) is an individual obstetrics & gynecology provider in Ellicott City, Maryland, licensed in Maryland (D0030072) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Evangelical Community Hospital, and is a graduate of Other (1981).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Andrew M Pataki Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Andrew Pataki reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Ellicott City, MD 21043
- Reassigned Medicare billing, Maryland enrollment
Shrewsbury, PA 17361
- Reassigned Medicare billing, Pennsylvania enrollment
- 3,080 clinicians in this Medicare group
Lewisburg, PA 17837
- Reassigned Medicare billing, Pennsylvania enrollment
- 303 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Evangelical Community Hospital
Acute Care Hospitals · Lewisburg, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21043 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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ELLICOTT CITY, MD 21043
ELLICOTT CITY, MD 21043
ELLICOTT CITY, MD 21043
ELLICOTT CITY, MD 21043
ELLICOTT CITY, MD 21043
ELLICOTT CITY, MD 21043
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 Andrew Pataki's NPI number?
The NPI number for Andrew Pataki is 1225097637. It was assigned to this individual provider in the NPPES registry on March 23, 2006.
Where is Andrew Pataki located?
Andrew Pataki practices at 3454 Ellicott Center Dr Suite 103, Ellicott City, MD 21043. The listed phone number is (410) 465-4690.
What is Andrew Pataki's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Andrew Pataki enrolled in Medicare?
Yes. Andrew Pataki is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Andrew Pataki's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Pataki reassigns Medicare benefits to 3 organizations: Womens Center Ob Gyn Assoc LLC (Ellicott City, MD), Wellspan Medical Group (Shrewsbury, PA) and Evangelical Medical Services Organization (Lewisburg, PA). 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 Andrew Pataki's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Andrew Pataki affiliated with any hospitals?
According to CMS data, Andrew Pataki is affiliated with Evangelical Community Hospital.
When was this NPI record last updated?
The NPPES record for Andrew Pataki was last updated on May 2, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years 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.
# Andrew M Pataki, MD · NPI 1225097637
Obstetrics & Gynecology physician in Ellicott City, Maryland. Individual provider, active in the CMS NPPES registry since March 23, 2006.
## Identity
- **NPI:** 1225097637 (Entity type: Individual)
- **Enumerated:** March 23, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** D0030072 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 3454 ELLICOTT CENTER DR, SUITE 103, Ellicott City, MD 21043-4113
- **Phone:** (410) 465-4690 · **Fax:** (410) 465-8144
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Womens Center Ob Gyn Assoc LLC (NPI 1013930981, Ellicott City, MD); Wellspan Medical Group (NPI 1003229626, Shrewsbury, PA); Evangelical Medical Services Organization (NPI 1205928967, Lewisburg, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1981
## Record status
- **NPPES last updated:** May 2, 2008
- **Other identifiers:** Medicare PIN 377B (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1225097637) · Data from the CMS NPPES public registry.