NPPES file of Aug 9, 2026

Mary Bassing, M.D.

Geriatric Medicine (Internal Medicine) Physician · La Crosse, WI

Mary Bassing, M.D. is a geriatric medicine (internal medicine) physician with a practice address in La Crosse, Wisconsin, and NPI 1629395355, issued on Apr 20, 2010. Check the license (Wisconsin 56312, as entered in NPPES) on the Wisconsin Medical Examining 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
1629395355
Name
Mary Bassing
Credential
M.D.
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
56312 WI
Self-reported in NPPES; status is on the state search
Practice location
1836 South Ave, La Crosse, WI 54601
Phone
(608) 782-7300
Enumerated
Apr 20, 2010
Record last updated
Aug 14, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20130924000634); 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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8 nearest geriatric medicine (internal medicine) physician records → All 110 in Wisconsin → Look up another NPI →

Also registered at 1836 South Ave

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

  1. Frank Aberger, MDGastroenterology Physician1396748711
  2. Bradley Abicht, DPMPodiatrist1962632166
  3. Carter Abicht, DOAnesthesiology Physician1932736642
  4. Grace AbichtCertified Registered Nurse Anesthetist1003651555
  5. Paul Abicht, CRNACertified Registered Nurse Anesthetist1528061843
  6. Mateen Abidi, M.DCardiovascular Disease Physician1730333980

Verify Mary Bassing in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 56312    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 Wisconsin license search

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5.8 times the Medicare Part D claims of the average geriatric medicine (internal medicine) physician in 2024

24,684 Medicare Part D claims for 573 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 524 claims were for opioids.

  1. Mary Bassing24,684
  2. Specialty average4,246

Most prescribed

  1. Memantine Hcl1,131 claims
  2. Levothyroxine Sodium1,046 claims
  3. Omeprazole1,035 claims
  4. Atorvastatin Calcium990 claims
  5. Sertraline Hcl912 claims
  6. Amlodipine Besylate879 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.

Bills Medicare through 2 group practices

  1. Gundersen Clinic LtdSparta, WI
  2. Gundersen Lutheran Medical Center IncLa Crosse, WI

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

Mary Bassing among 110 geriatric medicine (internal medicine) physician records in Wisconsin

Mary Bassing, M.D. is one of 110 geriatric medicine (internal medicine) physician records with a practice address in Wisconsin. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 67% of them.

  • NPI issued2010 · 67% of these records are older, 30% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2010 · median 2006 among the 55 with a school on file
  • Record last updated2014 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in Wisconsin

There are 110 geriatric medicine (internal medicine) physician records in Wisconsin.

All 110 in Wisconsin → Every provider in La Crosse → Geriatric Medicine (Internal Medicine) Physician nationwide →

The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes

  1. Elizabeth Cogbill, MDLa Crosse, WI 546011174628689
  2. Jessica KuesterLa Crosse, WI 546011134392566
  3. Thomas Loepfe, MDLa Crosse, WI 546011457333999
  4. Galia PaganelliLa Crosse, WI 546011255518437
  5. Kelly Seib, MDSparta, WI 546561831157114
  6. Katherine Pica, M.D.Tomah, WI 546601962413419
  7. Lily Liu, MDEau Claire, WI 547031508956772
  8. Aanuoluwa Abiola, M.DMarshfield, WI 544491598117574

Common questions

What is Mary Bassing, M.D.'s NPI number?

Mary Bassing, M.D.'s National Provider Identifier (NPI) is 1629395355, issued on Apr 20, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Mary Bassing, M.D. located?

The NPPES record lists a practice address at 1836 South Ave, La Crosse, WI, 54601. Phone: (608) 782-7300. Providers update this record themselves, so call before visiting.

How can I verify Mary Bassing, M.D.'s license?

NPPES lists Wisconsin license number 56312, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mary Bassing, M.D. prescribe under Medicare Part D?

In 2024, Mary Bassing, M.D. had 24,684 Medicare Part D claims for 573 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.