NPPES file of Aug 9, 2026

Maria Louise Stamp, MD

Family Medicine Physician · Valparaiso, IN

Maria Louise Stamp, MD is a family medicine physician with a practice address in Valparaiso, Indiana, and NPI 1902836984, issued on Jul 4, 2006. Check the license (Indiana 01068785A, as entered in NPPES) on the Medical Licensing Board of Indiana; 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
1902836984
Name
Maria Louise Stamp
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
01068785A IN
M8681 ID
MD00043551 WA
Self-reported in NPPES; status is on the state search
Practice location
336 W US Highway 30, Valparaiso, IN 46385
Phone
(219) 464-7430
Enumerated
Jul 4, 2006
Record last updated
Sep 18, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(219) 464-8014
Medicare enrollment
Enrolled (PECOS I20110412000326); accepts Medicare assignment
Medical or professional school
Indiana University School Of Medicine, 1996
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 336 W US Highway 30

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

  1. Michael Mirochna, M.D.Family Medicine Physician1770747263

Verify Maria Louise Stamp in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Licensing Board of Indiana
    Search for license 01068785A
    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 Indiana 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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Most of these Medicare Part D claims are vaccines, 96% of the cost of the top drugs

317 Medicare Part D claims for 259 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 73% of claims.

  1. Maria Stamp317
  2. Specialty average3,544

Most prescribed

Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.

  1. Abrysvo146 claims
  2. Shingrix51 claims
  3. Adacel Tdap31 claims
  4. Amoxicillin11 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): 88 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 score74.0
  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).

Bills Medicare through 2 group practices

  1. LA Porte Clinic Company LLCKnox, IN
  2. Porter Physician Services LLCValparaiso, IN

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

Maria Louise Stamp among 3,506 family medicine physician records in Indiana

Maria Louise Stamp, MD is one of 3,506 family medicine physician records with a practice address in Indiana. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 19% of them.

  • NPI issued2006 · 19% of these records are older, 46% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1996 · median 2005 among the 2,196 with a school on file
  • Record last updated2020 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

32 family medicine physician records list a practice address in Valparaiso

They are 32 of the 1,525 NPPES records with a practice address in Valparaiso, and 3,506 family medicine physician records in Indiana.

The 8 family medicine physician records with the nearest ZIP codes

  1. Michael Boxum, D.O.Valparaiso, IN 463851235105685
  2. Linda Boxum, D.O.Valparaiso, IN 463851942326905
  3. Danielle Harris, D.O.Valparaiso, IN 463851497119648
  4. Michael Mirochna, M.D.Valparaiso, IN 463851770747263
  5. Sarah Polito, DOValparaiso, IN 463851548675119
  6. Leena Aljobeh, MDValparaiso, IN 463831144800152
  7. Faleh Atassi, M.D.Valparaiso, IN 463831346322393
  8. Janet Bilder, DOValparaiso, IN 463831326451030

Common questions

What is Maria Louise Stamp, MD's NPI number?

Maria Louise Stamp, MD's National Provider Identifier (NPI) is 1902836984, issued on Jul 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Maria Louise Stamp, MD located?

The NPPES record lists a practice address at 336 W US Highway 30, Valparaiso, IN, 46385. Phone: (219) 464-7430. Providers update this record themselves, so call before visiting.

How can I verify Maria Louise Stamp, MD's license?

NPPES lists Indiana license number 01068785A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Maria Louise Stamp, MD prescribe under Medicare Part D?

In 2024, Maria Louise Stamp, MD had 317 Medicare Part D claims for 259 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Maria Louise Stamp, MD's MIPS final score?

The 2023 MIPS final score is 88 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.