NPPES file of Aug 9, 2026

Marissa Anne O'Keeffe, MD

Nephrology Physician · Brooklyn Center, MN

Marissa Anne O'Keeffe, MD is a nephrology physician with a practice address in Brooklyn Center, Minnesota, and NPI 1689133597, issued on Mar 19, 2019. Check the license (Minnesota 75552, as entered in NPPES) on the Minnesota Board of Medical Practice; 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
1689133597
Name
Marissa Anne O'Keeffe
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
75552 MN
Self-reported in NPPES; status is on the state search
Practice location
6200 Shingle Creek Pkwy Ste 250, Brooklyn Center, MN 55430
Phone
(763) 544-0696
Enumerated
Mar 19, 2019
Record last updated
Aug 14, 2024
Medicare enrollment
Enrolled (PECOS I20240508002286); accepts Medicare assignment
Medical or professional school
University Of Iowa, Rj & L Carver College Of Medicine, 2019
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 6200 Shingle Creek Pkwy Ste 250

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

  1. Brady BrabecNephrology Physician1124343785
  2. Anna Krieger, MDNephrology Physician1700440112
  3. Maxwell LeitherNephrology Physician1538459755
  4. Diane Perry, LICSWClinical Social Worker1598486177
  5. Mayly Thor, RD, LDRegistered Dietitian1487367017

Verify Marissa Anne O'Keeffe in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMinnesota Board of Medical Practice
    Search for license 75552
    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 Minnesota 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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97% fewer Medicare Part D claims than the average nephrology physician in 2024

45 Medicare Part D claims for 21 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.

  1. Marissa O'Keeffe45
  2. Specialty average1,465

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 3 group practices

  1. Allina Health SystemMinneapolis, MN
  2. Kidney Specialists OF Minnesota, PARoseville, MN
  3. North Memorial Health CareRobbinsdale, MN

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

17 nephrology physician records list a practice address in Brooklyn Center

They are 17 of the 871 NPPES records with a practice address in Brooklyn Center, and 261 nephrology physician records in Minnesota.

Other nephrology physician records in Minnesota

  1. Mohammed Abdalla, MDRochester, MN1952823007
  2. Yasir Abdelgadir, M.D.Saint Paul, MN1255786216
  3. Paul Abraham, MDSt Paul, MN1477528438
  4. Amogh Agrawal, MDRochester, MN1992318406
  5. Aqeel Ahmad, M.D.Saint Paul, MN1497942866
  6. Momina Ahmed, MDMinneapolist, MN1790467116
  7. Eimad AhmmadSaint Paul, MN1386896660
  8. Noppawit Aiumtrakul, MDRochester, MN1295466324
  9. Arda Akoluk, MDMinneapolis, MN1538666722
  10. Sreyoshi Alam, MBBSRochester, MN1164031324

Common questions

What is Marissa Anne O'Keeffe, MD's NPI number?

Marissa Anne O'Keeffe, MD's National Provider Identifier (NPI) is 1689133597, issued on Mar 19, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Marissa Anne O'Keeffe, MD located?

The NPPES record lists a practice address at 6200 Shingle Creek Pkwy Ste 250, Brooklyn Center, MN, 55430. Phone: (763) 544-0696. Providers update this record themselves, so call before visiting.

How can I verify Marissa Anne O'Keeffe, MD's license?

NPPES lists Minnesota license number 75552, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Marissa Anne O'Keeffe, MD prescribe under Medicare Part D?

In 2024, Marissa Anne O'Keeffe, MD had 45 Medicare Part D claims for 21 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.