DR. ALEXANDER JOSEPH KAISER M.D.
NPI 1639582570
Anesthesiology in Manchester, NH
About Dr. Alexander Joseph Kaiser M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALEXANDER JOSEPH KAISER M.D. (NPI 1639582570) is an individual anesthesiology provider in Manchester, New Hampshire, licensed in New Hampshire (20017) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS, is affiliated with Catholic Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
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
Dr. Alexander Joseph Kaiser 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
6Medicare enrollment records show Alexander Kaiser reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
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
Manchester, NH 03103
- Reassigned Medicare billing, New Hampshire enrollment
- 278 clinicians in this Medicare group
Nashua, NH 03060
- Reassigned Medicare billing, New Hampshire enrollment
- 132 clinicians in this Medicare group
Exeter, NH 03833
- Reassigned Medicare billing, New Hampshire enrollment
- 189 clinicians in this Medicare group
Patchogue, NY 11772
- Reassigned Medicare billing, New Hampshire enrollment
- 145 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
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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MANCHESTER, NH 03102
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 Alexander Kaiser's NPI number?
The NPI number for Alexander Kaiser is 1639582570. It was assigned to this individual provider in the NPPES registry on June 9, 2014.
Where is Alexander Kaiser located?
Alexander Kaiser practices at 100 Mcgregor St, Manchester, NH 03102. The listed phone number is (603) 668-3545.
What is Alexander Kaiser's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Alexander Kaiser enrolled in Medicare?
Yes. Alexander Kaiser 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 Alexander Kaiser's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Kaiser reassigns Medicare benefits to 6 organizations: Catholic Medical Center (Manchester, NH), Granite State Anesthesia Partners, LLC (Manchester, NH), Amoskeag Anesthesia, PLLC (Manchester, NH), North American Partners In Anesthesia New Hampshire LLP (Nashua, NH), Anesthesia Care Group PC (Exeter, NH) and 1 more organization, listed in the Medicare section above. 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 Alexander Kaiser's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alexander Kaiser accept?
Health plans from Taro Health and WellSense Health Plan list Alexander Kaiser 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 Alexander Kaiser affiliated with any hospitals?
According to CMS data, Alexander Kaiser is affiliated with Catholic Medical Center.
When was this NPI record last updated?
The NPPES record for Alexander Kaiser was last updated on December 13, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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. Alexander Joseph Kaiser, M.D. · NPI 1639582570
Anesthesiology physician in Manchester, New Hampshire. Individual provider, active in the CMS NPPES registry since June 9, 2014.
## Identity
- **NPI:** 1639582570 (Entity type: Individual)
- **Enumerated:** June 9, 2014
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 20017 (New Hampshire)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 100 MCGREGOR ST, Manchester, NH 03102-3730
- **Phone:** (603) 668-3545
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Catholic Medical Center (NPI 1003692112, Manchester, NH); Granite State Anesthesia Partners, LLC (NPI 1821815010, Manchester, NH); Amoskeag Anesthesia, PLLC (NPI 1104883511, Manchester, NH); North American Partners In Anesthesia New Hampshire LLP (NPI 1306838701, Nashua, NH); Anesthesia Care Group PC (NPI 1629074224, Exeter, NH); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Massachusetts Medical School, class of 2014
## Record status
- **NPPES last updated:** December 13, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1639582570) · Data from the CMS NPPES public registry.