Registry data as of Aug 27, 2026

Martha Karlstad, M.D.

Psychiatry Physician · Viroqua, WI

Martha Karlstad, M.D. is a psychiatry physician with a practice address in Viroqua, Wisconsin, and NPI 1457589954, issued on Jun 23, 2009. Check the license (Wisconsin 62165, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1457589954
Name
Martha Karlstad
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
62165 WI
LL31772 SC
Self-reported in NPPES; status is on the state search
Practice location
407 S Main St Ste 400, Viroqua, WI 54665
Phone
(608) 637-3174
Enumerated
Jun 23, 2009
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 407 S Main St Ste 400

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

  1. Bonnie Davidson, MDFamily Medicine Physician1568427375
  2. Phoebe DevittStudent in an Organized Health Care Education/Training Program1336567932
  3. Debra Gallagher, APNPFamily Nurse Practitioner1629446737
  4. Roxane Holm, PMHNPNurse Practitioner1598042145
  5. Rebecca Lyle, CNM, FNPNurse Practitioner1770063547

Verify Martha Karlstad in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 62165
    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

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

19% fewer Medicare Part D claims than the average psychiatry physician in 2024

820 Medicare Part D claims for 36 beneficiaries, against an average of 1,010 among the 32,287 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.

  1. Martha Karlstad820
  2. Specialty average1,010

Most prescribed

  1. Clonazepam77 claims
  2. Lorazepam58 claims
  3. Escitalopram Oxalate56 claims
  4. Clonidine Hcl50 claims
  5. Gabapentin42 claims
  6. Sertraline Hcl37 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.

One hospital or facility affiliation

  1. Vernon Memorial Healthcare IncLa Farge, WI

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

4 psychiatry physician records list a Viroqua practice address

They are 4 of the 241 NPPES records with a Viroqua practice address, and 858 psychiatry physician records in Wisconsin.

Other psychiatry physician records in Wisconsin

  1. Semhal Abbay, MDGreen Bay, WI1780713172
  2. Beth Abramson, M.D.Milwaukee, WI1922045996
  3. Sean Ackerman, M.D.Columbus, WI1548559305
  4. Nagwa Agaiby, M.D.Milwaukee, WI1336240407
  5. Eileen Ahearn, M.D.Madison, WI1144320524
  6. Mahmoud Ahmed, MDLadysmith, WI1659473312
  7. Jose Alba, M.D.Chilton, WI1942342704
  8. Nathaniel Albrecht, DOMenasha, WI1467853705
  9. Donald Alicea, M.D.Madison, WI1255794665
  10. Jordan Allen, DOMilwaukee, WI1568039865

Common questions

What is Martha Karlstad, M.D.'s NPI number?

Martha Karlstad, M.D.'s National Provider Identifier (NPI) is 1457589954, issued on Jun 23, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Martha Karlstad, M.D. located?

The NPPES record lists a practice address at 407 S Main St Ste 400, Viroqua, WI, 54665. Phone: (608) 637-3174. Providers update this record themselves, so call before visiting.

How can I verify Martha Karlstad, M.D.'s license?

NPPES lists Wisconsin license number 62165, 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 Martha Karlstad, M.D. prescribe under Medicare Part D?

In 2024, Martha Karlstad, M.D. had 820 Medicare Part D claims for 36 beneficiaries; the average among psychiatry physician prescribers was 1,010. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.