DR. MARK P GJOLAJ MD
NPI 1194911628
Anesthesiology in Stanford, CA
About Dr. Mark P Gjolaj Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK P GJOLAJ MD (NPI 1194911628) is an individual anesthesiology provider in Stanford, California, licensed in California (A96652) and active in the NPI registry since September 2007. He is enrolled in Medicare PECOS and is a graduate of University Of Michigan Medical School (2005).
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. Mark P Gjolaj 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
2Medicare enrollment records show Mark Gjolaj reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Stanford, CA 94305
- Reassigned Medicare billing, California enrollment
- 4,258 clinicians in this Medicare group
Redwood City, CA 94063
- Reassigned Medicare billing, California enrollment
- 20,078 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.
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.
STANFORD, CA 94305
STANFORD, CA 94305
STANFORD, CA 94305
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 Gjolaj's NPI number?
The NPI number for Mark Gjolaj is 1194911628. It was assigned to this individual provider in the NPPES registry on September 18, 2007.
Where is Mark Gjolaj located?
Mark Gjolaj practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-2300.
What is Mark Gjolaj's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Mark Gjolaj enrolled in Medicare?
Yes. Mark Gjolaj 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 Mark Gjolaj's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Gjolaj reassigns Medicare benefits to 2 organizations: Stanford Health Care (Stanford, CA) and Permanente Medical Group Inc (Redwood City, 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 Mark Gjolaj'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 Gjolaj was last updated on February 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Dr. Mark P Gjolaj, MD · NPI 1194911628
Anesthesiology physician in Stanford, California. Individual provider, active in the CMS NPPES registry since September 18, 2007.
## Identity
- **NPI:** 1194911628 (Entity type: Individual)
- **Enumerated:** September 18, 2007
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** A96652 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 300 PASTEUR DR, Stanford, CA 94305-2200
- **Phone:** (650) 723-2300
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Stanford Health Care (NPI 1437292927, Stanford, CA); Permanente Medical Group Inc (NPI 1639252604, Redwood City, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Michigan Medical School, class of 2005
## Record status
- **NPPES last updated:** February 11, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1194911628) · Data from the CMS NPPES public registry.