DR. NATHAN JACOB ARANSON M.D.
NPI 1497915847
Surgery - Vascular Surgery in S Portland, ME
About Dr. Nathan Jacob Aranson M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NATHAN JACOB ARANSON M.D. (NPI 1497915847) is an individual vascular surgery provider in S Portland, Maine, licensed in Maine (MD22043) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS, is affiliated with Northern Light Health, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 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
Dr. Nathan Jacob Aranson 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
7Medicare enrollment records show Nathan Aranson reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
S Portland, ME 04106
- Reassigned Medicare billing, Maine enrollment
- 3 clinicians in this Medicare group
Scarborough, ME 04074
- Reassigned Medicare billing, Maine enrollment
- 3,140 clinicians in this Medicare group
Scarborough, ME 04074
- Reassigned Medicare billing, Maine enrollment
- Also billed through NPI 1346687167 (Maine)
- 229 clinicians in this Medicare group
Somersworth, NH 03878
- Reassigned Medicare billing, New Hampshire enrollment
- 559 clinicians in this Medicare group
Newington, NH 03801
- Reassigned Medicare billing, New Hampshire enrollment
- Medicare enrollment name: Appledore Medical Group Inc
- 185 clinicians in this Medicare group
North Conway, NH 03860
- Reassigned Medicare billing, New Hampshire enrollment
- 173 clinicians in this Medicare group
Manchester, NH 03102
- Reassigned Medicare billing, New Hampshire enrollment
- 43 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 13
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northern Light Health
Acute Care Hospitals · Portland, MEMaine Medical Center
Acute Care Hospitals · Portland, MEYork Hospital
Acute Care Hospitals · York, MEWentworth-Douglass Hospital
Acute Care Hospitals · Dover, NHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04106 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
S PORTLAND, ME 04106
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 Nathan Aranson's NPI number?
The NPI number for Nathan Aranson is 1497915847. It was assigned to this individual provider in the NPPES registry on June 10, 2008.
Where is Nathan Aranson located?
Nathan Aranson practices at 400 Southborough Dr Ste 400-102, S Portland, ME 04106. The listed phone number is (207) 464-8288.
What is Nathan Aranson's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.
Is Nathan Aranson enrolled in Medicare?
Yes. Nathan Aranson 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 Nathan Aranson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nathan Aranson reassigns Medicare benefits to 7 organizations: Vascular Care Group Maine LLC (S Portland, ME), Mainehealth (Scarborough, ME), Maine Medical Partners (Scarborough, ME), Wentworth Douglass Physician Corporation (Somersworth, NH), Appledore Medical Group Dba Woodbury Family Practice (Newington, NH) and 2 more organizations, 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 Nathan Aranson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nathan Aranson accept?
Health plans from Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care, Taro Health and WellSense Health Plan list Nathan Aranson 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 Nathan Aranson affiliated with any hospitals?
According to CMS data, Nathan Aranson is affiliated with Northern Light Health, Maine Medical Center, York Hospital and Wentworth-Douglass Hospital.
When was this NPI record last updated?
The NPPES record for Nathan Aranson was last updated on December 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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. Nathan Jacob Aranson, M.D. · NPI 1497915847
Vascular Surgery physician in S Portland, Maine. Individual provider, active in the CMS NPPES registry since June 10, 2008.
## Identity
- **NPI:** 1497915847 (Entity type: Individual)
- **Enumerated:** June 10, 2008
- **Primary specialty:** Surgery - Vascular Surgery · taxonomy 2086S0129X
- **State license:** MD22043 (Maine)
- **Sole proprietor:** No
## Practice location
- **Address:** 400 SOUTHBOROUGH DR STE 400-102, S Portland, ME 04106-3249
- **Phone:** (207) 464-8288 · **Fax:** (207) 274-7848
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Vascular Care Group Maine LLC (NPI 1053019588, S Portland, ME); Mainehealth (NPI 1497052518, Scarborough, ME); Maine Medical Partners (NPI 1386937175, Scarborough, ME); Wentworth Douglass Physician Corporation (NPI 1295326494, Somersworth, NH); Appledore Medical Group Dba Woodbury Family Practice (NPI 1225232184, Newington, NH); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2006
## Record status
- **NPPES last updated:** December 4, 2025
- **Other identifiers:** Other 19628 (NH); Medicaid 3112087 (NH); Other MD22043 (ME); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1497915847) · Data from the CMS NPPES public registry.