NPPES file of Aug 9, 2026

Nathan Jacob Aranson, M.D.

Vascular Surgery Physician · S Portland, ME

Nathan Jacob Aranson, M.D. is a vascular surgery physician with a practice address in S Portland, Maine, and NPI 1497915847, issued on Jun 10, 2008. Check the license (Maine MD22043, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1497915847
Name
Nathan Jacob Aranson
Credential
M.D.
Primary taxonomy
Vascular Surgery Physician 2086S0129X
License numbers
MD22043 ME
A104159 CA
19628 NH
MD60561274 WA
Self-reported in NPPES; status is on the state search
Practice location
400 Southborough Dr Ste 400-102, S Portland, ME 04106
Phone
(207) 464-8288
Enumerated
Jun 10, 2008
Record last updated
Dec 4, 2025
Fax
(207) 274-7848
Medicaid ID
3112087 NH
Medicare enrollment
Enrolled (PECOS I20200818000738); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 400 Southborough Dr Ste 400-102

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

  1. Christopher Healey, M.D.Surgery Physician1215072095

Verify Nathan Jacob Aranson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
    Search for license MD22043
    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
Open the Maine license search

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37% fewer Medicare Part D claims than the average vascular surgery physician in 2024

127 Medicare Part D claims for 60 beneficiaries, against an average of 201 among the 3,936 providers of this specialty who prescribed in Part D. 24 claims were for opioids.

  1. Nathan Aranson127
  2. Specialty average201

Most prescribed

  1. Cilostazol27 claims
  2. Clopidogrel27 claims
  3. Oxycodone Hcl19 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 98.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score86.1
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $46,257.23

89 payments; by number, the most common kind was food and beverage; the largest payer was Silk Road Medical, Inc. The 4,059 providers of this specialty with any payment received $6,178.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nathan Aranson$46,257
  2. Specialty average$6,178

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

Bills Medicare through 3 group practices

  1. Appledore Medical Group IncPortsmouth, NH
  2. Vascular Care Group Maine LLCS Portland, ME
  3. Wentworth Douglass Physician CorporationDover, NH

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

Nathan Jacob Aranson among 35 vascular surgery physician records in Maine

Nathan Jacob Aranson, M.D. is one of 35 vascular surgery physician records with a practice address in Maine. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 40% of them.

  • NPI issued2008 · 40% of these records are older, 51% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2006 · median 2013 among the 26 with a school on file
  • Record last updated2025 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0129X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1 vascular surgery physician record lists a practice address in S Portland

They are 1 of the 19 NPPES records with a practice address in S Portland, and 35 vascular surgery physician records in Maine.

The 8 vascular surgery physician records with the nearest ZIP codes

  1. Carl Bredenberg, M.D.Cape Elizabeth, ME 041071346618741
  2. Anna Boniakowski, MDPortland, ME 041021134565492
  3. William Herbert, MDPortland, ME 041021134105075
  4. Kimberly Malka, M.D.Portland, ME 041021770921462
  5. Donald McGuirl, MDPortland, ME 041021063098960
  6. Kunal MehtaPortland, ME 041021992236368
  7. Vincent Noori, M.D.Portland, ME 041021811382773
  8. Truc Ta, M.D.Portland, ME 041021114459831

Common questions

What is Nathan Jacob Aranson, M.D.'s NPI number?

Nathan Jacob Aranson, M.D.'s National Provider Identifier (NPI) is 1497915847, issued on Jun 10, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Nathan Jacob Aranson, M.D. located?

The NPPES record lists a practice address at 400 Southborough Dr Ste 400-102, S Portland, ME, 04106. Phone: (207) 464-8288. Providers update this record themselves, so call before visiting.

How can I verify Nathan Jacob Aranson, M.D.'s license?

NPPES lists Maine license number MD22043, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Nathan Jacob Aranson, M.D. prescribe under Medicare Part D?

In 2024, Nathan Jacob Aranson, M.D. had 127 Medicare Part D claims for 60 beneficiaries; the average among vascular surgery physician prescribers was 201. Part D covers Medicare prescriptions only.

What is Nathan Jacob Aranson, M.D.'s MIPS final score?

The 2023 MIPS final score is 98.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.