NPPES file of Aug 9, 2026

Mark Alan Merlo, CRNA

Certified Registered Nurse Anesthetist · Pittsburgh, PA

Mark Alan Merlo, CRNA is a certified registered nurse anesthetist with a practice address in Pittsburgh, Pennsylvania, and NPI 1336114099, issued on Feb 17, 2006. Check the license (Pennsylvania RN311943L, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1336114099
Name
Mark Alan Merlo
Credential
CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License number
RN311943L PA
Self-reported in NPPES; status is on the state search
Practice location
815 Freeport RD, Pittsburgh, PA 15215
Phone
(412) 784-4396
Enumerated
Feb 17, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20040907000280); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 815 Freeport RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Tiffany AllenPhysical Therapist1093140923
  2. Karen Aluise, PTPhysical Therapist1750381414
  3. Nicole AmbriscoPhysical Therapist1053811299
  4. Kristina ArchuletaOccupational Therapist1831381862
  5. Susanne Armour, P TPhysical Therapist1265656920
  6. Kaytie Arndt, PA-CPhysician Assistant1154159812

Verify Mark Alan Merlo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license RN311943L
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Pennsylvania license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $95.28

5 payments; by number, the most common kind was food and beverage; the largest payer was Takeda Pharmaceuticals U.S.A., Inc. The 24,076 providers of this specialty with any payment received $135.08 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Merlo$95.28
  2. Specialty average$135.08

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Kbs Anesthesia, Inc.Beaver, PA
  2. Valley Gastroenterology Associates PCBeaver Falls, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mark Alan Merlo among 4,822 certified registered nurse anesthetist records in Pennsylvania

Mark Alan Merlo, CRNA is one of 4,822 certified registered nurse anesthetist records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 58% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated1992 · median 2012 among the 3,576 with a school on file
  • Record last updated2007 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

913 certified registered nurse anesthetist records list a practice address in Pittsburgh

They are 913 of the 28,866 NPPES records with a practice address in Pittsburgh, and 4,822 certified registered nurse anesthetist records in Pennsylvania.

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Pauline Dishler, CRNAPittsburgh, PA 152151558334920
  2. Mary Humphrey, CRNAPittsburgh, PA 152151992778625
  3. Darla Kaczmarek, CRNAPittsburgh, PA 152151598739146
  4. Richard LauxPittsburgh, PA 152151326012451
  5. Amy McConaghyPittsburgh, PA 152151669446506
  6. Judith McCracken, CRNAPittsburgh, PA 152151386618239
  7. Tammy MetzgerPittsburgh, PA 152151770552812
  8. Kathleen Miller, CRNAPittsburgh, PA 152151396710083

Common questions

What is Mark Alan Merlo, CRNA's NPI number?

Mark Alan Merlo, CRNA's National Provider Identifier (NPI) is 1336114099, issued on Feb 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Alan Merlo, CRNA located?

The NPPES record lists a practice address at 815 Freeport RD, Pittsburgh, PA, 15215. Phone: (412) 784-4396. Providers update this record themselves, so call before visiting.

How can I verify Mark Alan Merlo, CRNA's license?

NPPES lists Pennsylvania license number RN311943L, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.