MR. DAVID WILLIAM LASSEN CRNA
NPI 1841542313
Nurse Anesthetist, Certified Registered in Inglewood, CA
About Mr. David William Lassen Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. DAVID WILLIAM LASSEN CRNA (NPI 1841542313) is an individual nurse anesthetist, certified registered in Inglewood, California, licensed in California (4304) and active in the NPI registry since October 2012. He is a graduate of Other (2012).
NPPES Registry Identity
Specialties & Licenses 2
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
Mr. David William Lassen Crna 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
9Medicare enrollment records show David Lassen reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Beverly Hills, CA 90211
- Reassigned Medicare billing, California enrollment
- 88 clinicians in this Medicare group
Los Angeles, CA 90024
- Reassigned Medicare billing, California enrollment
- 17 clinicians in this Medicare group
Santa Monica, CA 90404
- Reassigned Medicare billing, California enrollment
- 57 clinicians in this Medicare group
Los Angeles, CA 90026
- Reassigned Medicare billing, California enrollment
- 11 clinicians in this Medicare group
Tarzana, CA 91356
- Reassigned Medicare billing, California enrollment
- 44 clinicians in this Medicare group
Los Alamitos, CA 90720
- Reassigned Medicare billing, California enrollment
- 488 clinicians in this Medicare group
West Hills, CA 91307
- Reassigned Medicare billing, California enrollment
- 99 clinicians in this Medicare group
Camarillo, CA 93012
- Reassigned Medicare billing, California enrollment
- 112 clinicians in this Medicare group
Encinitas, CA 92024
- Reassigned Medicare billing, California enrollment
- 242 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 6
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 90301 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.
INGLEWOOD, CA 90301
INGLEWOOD, CA 90301
INGLEWOOD, CA 90301
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 David Lassen's NPI number?
The NPI number for David Lassen is 1841542313. It was assigned to this individual provider in the NPPES registry on October 9, 2012.
Where is David Lassen located?
David Lassen practices at 555 E Hardy St, Inglewood, CA 90301. The listed phone number is (310) 673-4660.
What is David Lassen's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is David Lassen enrolled in Medicare?
Yes. David Lassen 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 David Lassen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Lassen reassigns Medicare benefits to 9 organizations: Tip Top Anesthesia Group Inc (Beverly Hills, CA), Apmc Medical Group Inc (Los Angeles, CA), Digestive Health Associates Of Southern California (Santa Monica, CA), Tiger Valley Medical Group, Inc (Los Angeles, CA), Scq Anesthesia A Professional Nursing Corporation (Tarzana, CA) and 4 more organizations, listed in the Medicare section above. 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 David Lassen'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 David Lassen was last updated on May 17, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Mr. David William Lassen, CRNA · NPI 1841542313
Nurse Anesthetist, Certified Registered physician in Inglewood, California. Individual provider, active in the CMS NPPES registry since October 9, 2012.
## Identity
- **NPI:** 1841542313 (Entity type: Individual)
- **Enumerated:** October 9, 2012
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 4304 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 555 E HARDY ST, Inglewood, CA 90301-4011
- **Phone:** (310) 673-4660
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 9 organizations under Medicare reassignment (form CMS-855R): Tip Top Anesthesia Group Inc (NPI 1508283698, Beverly Hills, CA); Apmc Medical Group Inc (NPI 1184592982, Los Angeles, CA); Digestive Health Associates Of Southern California (NPI 1043098619, Santa Monica, CA); Tiger Valley Medical Group, Inc (NPI 1144361171, Los Angeles, CA); Scq Anesthesia A Professional Nursing Corporation (NPI 1689381105, Tarzana, CA); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** May 17, 2013
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Source: [NPI Profile](https://npiprofile.com/npi/1841542313) · Data from the CMS NPPES public registry.