PROF. MARK ALAN MERLO CRNA
NPI 1336114099
Nurse Anesthetist, Certified Registered in Pittsburgh, PA
About Prof. Mark Alan Merlo Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PROF. MARK ALAN MERLO CRNA (NPI 1336114099) is an individual nurse anesthetist, certified registered in Pittsburgh, Pennsylvania, licensed in Pennsylvania (RN311943L) and active in the NPI registry since February 2006. He is affiliated with Heritage Valley Beaver and is a graduate of Other (1992).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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
Prof. Mark Alan Merlo 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
4Medicare enrollment records show Mark Merlo reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Pittsburgh, PA 15215
- Reassigned Medicare billing, Pennsylvania enrollment
- 7,114 clinicians in this Medicare group
Beaver, PA 15009
- Reassigned Medicare billing, Pennsylvania enrollment
- 90 clinicians in this Medicare group
Beaver Falls, PA 15010
- Reassigned Medicare billing, Pennsylvania enrollment
- 16 clinicians in this Medicare group
Darby, PA 19023
- Reassigned Medicare billing, Pennsylvania enrollment
- 400 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.
Heritage Valley Beaver
Acute Care Hospitals · Beaver, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 15215 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
PITTSBURGH, PA 15215
PITTSBURGH, PA 15215
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 Merlo's NPI number?
The NPI number for Mark Merlo is 1336114099. It was assigned to this individual provider in the NPPES registry on February 17, 2006.
Where is Mark Merlo located?
Mark Merlo practices at 815 Freeport Rd, Pittsburgh, PA 15215. The listed phone number is (412) 784-4396.
What is Mark Merlo's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Mark Merlo enrolled in Medicare?
Yes. Mark Merlo 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 Merlo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Merlo reassigns Medicare benefits to 4 organizations: University Of Pittsburgh Physicians (Pittsburgh, PA), Kbs Anesthesia, Inc. (Beaver, PA), Valley Gastroenterology Associates PC (Beaver Falls, PA) and Northstar Anesthesia Of Pennsylvania, LLC (Darby, PA). 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 Merlo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Mark Merlo affiliated with any hospitals?
According to CMS data, Mark Merlo is affiliated with Heritage Valley Beaver.
When was this NPI record last updated?
The NPPES record for Mark Merlo was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Prof. Mark Alan Merlo, CRNA · NPI 1336114099
Nurse Anesthetist, Certified Registered physician in Pittsburgh, Pennsylvania. Individual provider, active in the CMS NPPES registry since February 17, 2006.
## Identity
- **NPI:** 1336114099 (Entity type: Individual)
- **Enumerated:** February 17, 2006
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** RN311943L (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 815 FREEPORT RD, Pittsburgh, PA 15215-3301
- **Phone:** (412) 784-4396
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): University Of Pittsburgh Physicians (NPI 1053848051, Pittsburgh, PA); Kbs Anesthesia, Inc. (NPI 1801559349, Beaver, PA); Valley Gastroenterology Associates PC (NPI 1891748877, Beaver Falls, PA); Northstar Anesthesia Of Pennsylvania, LLC (NPI 1700218989, Darby, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1992
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare ID-Type Unspecified 010270FEV (PA); Medicare UPIN S56295 (PA)
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Source: [NPI Profile](https://npiprofile.com/npi/1336114099) · Data from the CMS NPPES public registry.