MARIO LUCIO GRASSO M.D.
NPI 1972664522
Anesthesiology in Philadelphia, PA
About Mario Lucio Grasso M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIO LUCIO GRASSO M.D. (NPI 1972664522) is an individual anesthesiology provider in Philadelphia, Pennsylvania, licensed in New Jersey (25MA08550900) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS, is affiliated with Saint Clare's Hospital/ Denville Campus, and is a graduate of Perelman School Of Med At The University Of Pennsylvania (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
Mario Lucio Grasso 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
2Medicare enrollment records show Mario Grasso reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brick, NJ 08724
- Reassigned Medicare billing, New Jersey enrollment
- 112 clinicians in this Medicare group
Shrewsbury, NJ 07702
- Reassigned Medicare billing, New Jersey enrollment
- 396 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Saint Clare's Hospital/ Denville Campus
Acute Care Hospitals · Denville, NJOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PHILADELPHIA, PA 19104
PHILADELPHIA, PA 19104
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 Mario Grasso's NPI number?
The NPI number for Mario Grasso is 1972664522. It was assigned to this individual provider in the NPPES registry on December 13, 2006.
Where is Mario Grasso located?
Mario Grasso practices at 3400 Spruce St 1 Maloney Building, Philadelphia, PA 19104. The listed phone number is (215) 662-3793.
What is Mario Grasso's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Mario Grasso enrolled in Medicare?
Yes. Mario Grasso 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 Mario Grasso's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mario Grasso reassigns Medicare benefits to 2 organizations: Morris Anesthesia Group, PA (Brick, NJ) and Shrewsbury Ambulatory Anesthesia LLC (Shrewsbury, NJ). 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 Mario Grasso's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Mario Grasso affiliated with any hospitals?
According to CMS data, Mario Grasso is affiliated with Saint Clare's Hospital/ Denville Campus.
When was this NPI record last updated?
The NPPES record for Mario Grasso was last updated on May 21, 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.
# Mario Lucio Grasso, M.D. · NPI 1972664522
Anesthesiology physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since December 13, 2006.
## Identity
- **NPI:** 1972664522 (Entity type: Individual)
- **Enumerated:** December 13, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 25MA08550900 (New Jersey)
- **Sole proprietor:** No
## Practice location
- **Address:** 3400 SPRUCE ST, 1 MALONEY BUILDING, Philadelphia, PA 19104-4206
- **Phone:** (215) 662-3793
## 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): Morris Anesthesia Group, PA (NPI 1477942423, Brick, NJ); Shrewsbury Ambulatory Anesthesia LLC (NPI 1356691885, Shrewsbury, NJ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Perelman School Of Med At The University Of Pennsylvania, class of 2005
## Record status
- **NPPES last updated:** May 21, 2009
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Source: [NPI Profile](https://npiprofile.com/npi/1972664522) · Data from the CMS NPPES public registry.