DR. JOHN J MAROTA PHD MD
NPI 1225046212
Anesthesiology in Boston, MA
About Dr. John J Marota Phd Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN J MAROTA PHD MD (NPI 1225046212) is an individual anesthesiology provider in Boston, Massachusetts, licensed in Massachusetts (71711) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. John J Marota Phd Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show John Marota reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 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 2
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.
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.
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
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 John Marota's NPI number?
The NPI number for John Marota is 1225046212. It was assigned to this individual provider in the NPPES registry on August 4, 2006.
Where is John Marota located?
John Marota practices at 55 Fruit Street Cln 3, Boston, MA 02114. The listed phone number is (617) 726-8812.
What is John Marota's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is John Marota enrolled in Medicare?
Yes. John Marota is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for John Marota's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Marota reassigns Medicare benefits to 2 organizations: Massachusetts General Physicians Organization Inc (Boston, MA) and The General Hospital Corporation (Boston, MA). 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 John Marota'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 John Marota 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.
# Dr. John J Marota, PHD MD · NPI 1225046212
Anesthesiology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since August 4, 2006.
## Identity
- **NPI:** 1225046212 (Entity type: Individual)
- **Enumerated:** August 4, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 71711 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 FRUIT STREET, CLN 3, Boston, MA 02114-2696
- **Phone:** (617) 726-8812 · **Fax:** (617) 726-7536
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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): Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare ID-Type Unspecified J09902 (MA); Medicare UPIN E51367; Medicaid 3086348 (MA); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1225046212) · Data from the CMS NPPES public registry.