DR. NATHAN HALE ALLEN M.D.
NPI 1598739161
Obstetrics & Gynecology in Sacramento, CA
About Dr. Nathan Hale Allen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NATHAN HALE ALLEN M.D. (NPI 1598739161) is an individual obstetrics & gynecology provider in Sacramento, California, licensed in California (G37098) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.
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 (PECOS)
Dr. Nathan Hale Allen M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Nathan Allen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Sacramento, CA 95823
- Reassigned Medicare billing, California enrollment
- 101 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 95823 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 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SACRAMENTO, CA 95823
SACRAMENTO, CA 95823
SACRAMENTO, CA 95823
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 Nathan Allen's NPI number?
The NPI number for Nathan Allen is 1598739161. It was assigned to this individual provider in the NPPES registry on February 13, 2006.
Where is Nathan Allen located?
Nathan Allen practices at 7237 E Southgate Dr Suite C, Sacramento, CA 95823. The listed phone number is (916) 392-2290.
What is Nathan Allen's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Nathan Allen enrolled in Medicare?
Yes. Nathan Allen is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Nathan Allen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nathan Allen reassigns Medicare benefits to Wellspace Health (Sacramento, CA). 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 Nathan Allen'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 Nathan Allen was last updated on December 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.