PAUL ANDREW LINCOLN GIEM MD
NPI 1366499774
Internal Medicine in Lake Isabella, CA
About Paul Andrew Lincoln Giem Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PAUL ANDREW LINCOLN GIEM MD (NPI 1366499774) is an individual internal medicine provider in Lake Isabella, California, licensed in California (G38778) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
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)
Paul Andrew Lincoln Giem Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Paul Giem reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Lake Isabella, CA 93240
- Reassigned Medicare billing, California enrollment
- 14 clinicians in this Medicare group
Lancaster, CA 93535
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: County Of Los Angeles
- 1,939 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 93240 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.
LAKE ISABELLA, CA 93240
LAKE ISABELLA, CA 93240
LAKE ISABELLA, CA 93240
LAKE ISABELLA, CA 93240
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 Paul Giem's NPI number?
The NPI number for Paul Giem is 1366499774. It was assigned to this individual provider in the NPPES registry on May 30, 2006.
Where is Paul Giem located?
Paul Giem practices at 6412 Laurel Ave Mountain Mesa, Lake Isabella, CA 93240. The listed phone number is (760) 379-2681.
What is Paul Giem's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Paul Giem enrolled in Medicare?
Yes. Paul Giem is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Paul Giem's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Paul Giem reassigns Medicare benefits to 2 organizations: Kern Valley Healthcare District (Lake Isabella, CA) and County Of Los Angeles Auditor Controller (Lancaster, CA). 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 Paul Giem'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 Paul Giem was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Paul Andrew Lincoln Giem, MD · NPI 1366499774
Internal Medicine physician in Lake Isabella, California. Individual provider, active in the CMS NPPES registry since May 30, 2006.
## Identity
- **NPI:** 1366499774 (Entity type: Individual)
- **Enumerated:** May 30, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** G38778 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 6412 LAUREL AVE, MOUNTAIN MESA, Lake Isabella, CA 93240-9529
- **Phone:** (760) 379-2681
## 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): Kern Valley Healthcare District (NPI 1427049964, Lake Isabella, CA); County Of Los Angeles Auditor Controller (NPI 1366453045, Lancaster, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 11, 2025
- **Other identifiers:** Medicaid 00G387780 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1366499774) · Data from the CMS NPPES public registry.