JOHN MICHAEL PANOPOULOS D.O.
NPI 1356342653
Anesthesiology in Portsmouth, NH
About John Michael Panopoulos D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN MICHAEL PANOPOULOS D.O. (NPI 1356342653) is an individual anesthesiology provider in Portsmouth, New Hampshire, licensed in New Hampshire (NH10491) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Catholic Medical Center, and is a graduate of Other (1988).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 4
Accepted Insurance
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
John Michael Panopoulos D.o. 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 John Panopoulos reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Portsmouth, NH 03801
- Reassigned Medicare billing, New Hampshire enrollment
- 58 clinicians in this Medicare group
Manchester, NH 03102
- Reassigned Medicare billing, New Hampshire enrollment
- 189 clinicians in this Medicare group
Manchester, NH 03102
- Reassigned Medicare billing, New Hampshire enrollment
- 72 clinicians in this Medicare group
Manchester, NH 03102
- Reassigned Medicare billing, New Hampshire enrollment
- 57 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 4
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.
Catholic Medical Center
Acute Care Hospitals · Manchester, NHOther Providers at the Same Location NPPES 15
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PORTSMOUTH, NH 03801
PORTSMOUTH, NH 03801
PORTSMOUTH, NH 03801
PORTSMOUTH, NH 03801
PORTSMOUTH, NH 03801
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 Panopoulos's NPI number?
The NPI number for John Panopoulos is 1356342653. It was assigned to this individual provider in the NPPES registry on August 9, 2005.
Where is John Panopoulos located?
John Panopoulos practices at 333 Borthwick Avenue Portsmouth Anesthesia Associates, Portsmouth, NH 03801. The listed phone number is (603) 749-0043.
What is John Panopoulos's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is John Panopoulos enrolled in Medicare?
Yes. John Panopoulos 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 John Panopoulos's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Panopoulos reassigns Medicare benefits to 4 organizations: Portsmouth Anesthesia Associates PA (Portsmouth, NH), Anesthesia Care Group PC (Manchester, NH), Catholic Medical Center (Manchester, NH) and Granite State Anesthesia Partners, LLC (Manchester, NH). 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 Panopoulos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Panopoulos accept?
Health plans from Taro Health list John Panopoulos as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is John Panopoulos affiliated with any hospitals?
According to CMS data, John Panopoulos is affiliated with Catholic Medical Center.
When was this NPI record last updated?
The NPPES record for John Panopoulos was last updated on August 1, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# John Michael Panopoulos, D.O. · NPI 1356342653
Anesthesiology physician in Portsmouth, New Hampshire. Individual provider, active in the CMS NPPES registry since August 9, 2005.
## Identity
- **NPI:** 1356342653 (Entity type: Individual)
- **Enumerated:** August 9, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** NH10491 (New Hampshire)
- **Sole proprietor:** No
## Practice location
- **Address:** 333 BORTHWICK AVENUE, PORTSMOUTH ANESTHESIA ASSOCIATES, Portsmouth, NH 03801-7128
- **Phone:** (603) 749-0043
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Portsmouth Anesthesia Associates PA (NPI 1568584290, Portsmouth, NH); Anesthesia Care Group PC (NPI 1629074224, Manchester, NH); Catholic Medical Center (NPI 1003692112, Manchester, NH); Granite State Anesthesia Partners, LLC (NPI 1821815010, Manchester, NH) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1988
## Record status
- **NPPES last updated:** August 1, 2008
- **Other identifiers:** Medicare UPIN F44600 (NH); Medicare ID-Type Unspecified RE5077 (NH); Medicaid 30220121 (NH); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1356342653) · Data from the CMS NPPES public registry.