NPPES file of Aug 9, 2026

Stephen Neal Marks, M.D.

Allergy Physician · Anchorage, AK

Stephen Neal Marks, M.D. is an allergy physician with a practice address in Anchorage, Alaska, and NPI 1437120235, issued on Jan 30, 2006. Check the license (Alaska 149226, as entered in NPPES) on the Alaska State Medical Board; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1437120235
Name
Stephen Neal Marks
Credential
M.D.
Primary taxonomy
Allergy Physician 207KA0200X
License number
149226 AK
Self-reported in NPPES; status is on the state search
Practice location
3841 Piper St Ste T4-054, Anchorage, AK 99508
Phone
(907) 562-6228
Enumerated
Jan 30, 2006
Record last updated
Apr 15, 2025
Fax
(907) 562-6868
Medicare enrollment
Enrolled (PECOS I20191111002642); accepts Medicare assignment
Medical or professional school
Michigan State University College Of Human Medicine, 1991
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 3841 Piper St Ste T4-054

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

  1. La Donna Dean, RD, LD, SNSRegistered Dietitian1184002545
  2. David Kingston, PA-CAllergy Physician1568867638
  3. Kacie Tempel, PA-CAllergy Physician1144651944
  4. Sean Walsh, PA-CAllergy Physician1962896746

Verify Stephen Neal Marks in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersAlaska State Medical Board
    Search for license 149226
    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 Alaska license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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77% fewer Medicare Part D claims than the average allergy physician in 2024

169 Medicare Part D claims for 49 beneficiaries, against an average of 750 among the 645 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.

  1. Stephen Marks169
  2. Specialty average750

Most prescribed

  1. Ipratropium Bromide24 claims
  2. Fluticasone Propionate21 claims
  3. Albuterol Sulfate Hfa14 claims
  4. Trelegy Ellipta12 claims
  5. Mometasone Furoate11 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.

Industry payments in 2024: $2,875.77

92 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 502 providers of this specialty with any payment received $9,080.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stephen Marks$2,875.77
  2. Specialty average$9,080.33

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

Bills Medicare through one group practice

  1. Allergy Asthma And Immunology Center OF Alaska LLCWasilla, AK

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

Allergy Physician providers in Alaska

There are 6 allergy physician records in Alaska.

The 5 allergy physician records with the nearest ZIP codes

  1. David Kingston, PA-CAnchorage, AK 995081568867638
  2. Eric Meier, M.D.Anchorage, AK 995081720076656
  3. Laura Moore, MDAnchorage, AK 995081710977822
  4. Kacie Tempel, PA-CAnchorage, AK 995081144651944
  5. Sean Walsh, PA-CAnchorage, AK 995081962896746

Common questions

What is Stephen Neal Marks, M.D.'s NPI number?

Stephen Neal Marks, M.D.'s National Provider Identifier (NPI) is 1437120235, issued on Jan 30, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Neal Marks, M.D. located?

The NPPES record lists a practice address at 3841 Piper St Ste T4-054, Anchorage, AK, 99508. Phone: (907) 562-6228. Providers update this record themselves, so call before visiting.

How can I verify Stephen Neal Marks, M.D.'s license?

NPPES lists Alaska license number 149226, as entered by the provider. Search the Alaska State Medical Board at https://www.commerce.alaska.gov/web/cbpl/ProfessionalLicensing/StateMedicalBoard.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Stephen Neal Marks, M.D. prescribe under Medicare Part D?

In 2024, Stephen Neal Marks, M.D. had 169 Medicare Part D claims for 49 beneficiaries; the average among allergy physician prescribers was 750. Part D covers Medicare prescriptions only.

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.