MICHAEL R. BLUM M.D.
NPI 1649229816
Emergency Medicine in Tarzana, CA
About Michael R. Blum M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL R. BLUM M.D. (NPI 1649229816) is an individual emergency medicine provider in Tarzana, California, licensed in Nevada (19575) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Saint Rose Dominican Hospitals - North Las Vegas, and is a graduate of University Of California, Irvine, California College Of Medicine (1995).
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
Michael R. Blum 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 Reassignments
4Medicare enrollment records show Michael Blum reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tarzana, CA 91356
- Reassigned Medicare billing, California enrollment
- 66 clinicians in this Medicare group
Mission Hills, CA 91345
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1386750578 (California)
- 1,204 clinicians in this Medicare group
Las Vegas, NV 89148
- Reassigned Medicare billing, Nevada enrollment
- 304 clinicians in this Medicare group
Las Vegas, NV 89113
- Reassigned Medicare billing, Nevada enrollment
- 100 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.
Saint Rose Dominican Hospitals - North Las Vegas
Acute Care Hospitals · North Las Vegas, NVPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91356 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 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
TARZANA, CA 91356
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 Michael Blum's NPI number?
The NPI number for Michael Blum is 1649229816. It was assigned to this individual provider in the NPPES registry on May 8, 2006.
Where is Michael Blum located?
Michael Blum practices at 18133 Ventura Blvd, Tarzana, CA 91356. The listed phone number is (818) 981-3818.
What is Michael Blum's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Michael Blum enrolled in Medicare?
Yes. Michael Blum 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 Michael Blum's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Blum reassigns Medicare benefits to 4 organizations: Tarzana Emergency Medical Associates (Tarzana, CA), Cep America - California (Mission Hills, CA), Fremont Emergency Services Scherr Ltd (Las Vegas, NV) and Vituity-Nevada Medical Services Koury & Partners PC (Las Vegas, NV). 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 Michael Blum's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Michael Blum affiliated with any hospitals?
According to CMS data, Michael Blum is affiliated with Saint Rose Dominican Hospitals - North Las Vegas.
When was this NPI record last updated?
The NPPES record for Michael Blum was last updated on September 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 46 days 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.
# Michael R. Blum, M.D. · NPI 1649229816
Emergency Medicine physician in Tarzana, California. Individual provider, active in the CMS NPPES registry since May 8, 2006.
## Identity
- **NPI:** 1649229816 (Entity type: Individual)
- **Enumerated:** May 8, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 19575 (Nevada)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 18133 VENTURA BLVD, Tarzana, CA 91356-3612
- **Phone:** (818) 981-3818
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Tarzana Emergency Medical Associates (NPI 1235176702, Tarzana, CA); Cep America - California (NPI 1780625871, Mission Hills, CA); Fremont Emergency Services Scherr Ltd (NPI 1679550149, Las Vegas, NV); Vituity-Nevada Medical Services Koury & Partners PC (NPI 1720828585, Las Vegas, NV) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Irvine, California College Of Medicine, class of 1995
## Record status
- **NPPES last updated:** September 4, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1649229816) · Data from the CMS NPPES public registry.