MARK HAAS M.D.
NPI 1750330478
Pathology - Anatomic Pathology & Clinical Pathology in Los Angeles, CA
About Mark Haas M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK HAAS M.D. (NPI 1750330478) is an individual anatomic pathology & clinical pathology provider in Los Angeles, California, licensed in Maryland (D55055) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of Duke University School Of Medicine (1982).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Mark Haas M.d. 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 Reassignment
Medicare enrollment records show Mark Haas reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90048
- Reassigned Medicare billing, California enrollment
- 2,118 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 7
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 90048 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
WEST HOLLYWOOD, CA 90048
WEST HOLLYWOOD, CA 90048
WEST HOLLYWOOD, CA 90048
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 Haas's NPI number?
The NPI number for Mark Haas is 1750330478. It was assigned to this individual provider in the NPPES registry on May 9, 2006.
Where is Mark Haas located?
Mark Haas practices at 8700 Beverly Blvd, Los Angeles, CA 90048. The listed phone number is (818) 338-8103.
What is Mark Haas's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.
Is Mark Haas enrolled in Medicare?
Yes. Mark Haas 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 organization bills Medicare for Mark Haas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Haas reassigns Medicare benefits to Cedars-Sinai Medical Care Foundation (Los Angeles, 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 Mark Haas'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 Haas was last updated on September 24, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Mark Haas, M.D. · NPI 1750330478
Anatomic Pathology & Clinical Pathology physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since May 9, 2006.
## Identity
- **NPI:** 1750330478 (Entity type: Individual)
- **Enumerated:** May 9, 2006
- **Primary specialty:** Pathology - Anatomic Pathology & Clinical Pathology · taxonomy 207ZP0102X
- **State license:** D55055 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 8700 BEVERLY BLVD, Los Angeles, CA 90048-1804
- **Phone:** (818) 338-8103 · **Fax:** (818) 338-8119
## 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:** Cedars-Sinai Medical Care Foundation (NPI 1043826720, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Duke University School Of Medicine, class of 1982
## Record status
- **NPPES last updated:** September 24, 2009
- **Other identifiers:** Medicare UPIN E21125 (MD); Medicare ID-Type Unspecified KR36666Y (MD); Medicaid 457100200 (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1750330478) · Data from the CMS NPPES public registry.