NPPES file of Aug 9, 2026

Katherin Elizabeth Portwood, MD

Neurology Physician · Saint Louis, MO

Katherin Elizabeth Portwood, MD is a neurology physician with a practice address in Saint Louis, Missouri, and NPI 1033672951, issued on Apr 8, 2019. Check the license (Missouri 2024030813, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; 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
1033672951
Name
Katherin Elizabeth Portwood
Credential
MD
Primary taxonomy
Neurology Physician 2084N0400X
License number
2024030813 MO
Self-reported in NPPES; status is on the state search
Practice location
1 Childrens PL, Saint Louis, MO 63110
Phone
(314) 362-1408
Enumerated
Apr 8, 2019
Record last updated
Apr 17, 2025
Fax
(314) 454-2523
Medicaid ID
200143213 MO
Medicare enrollment
Enrolled (PECOS I20250805002509); accepts Medicare assignment
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 1 Childrens PL

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

  1. Mohamed Abdelbaki, MDPediatric Hematology & Oncology Physician1508021361
  2. Christi Abeln, PNPPediatric Nurse Practitioner1023034253
  3. Loren Abernathy, PNPPediatric Nurse Practitioner1215583117
  4. Freddy-May Abisamra, CGCGenetic Counselor (M.S.)1306538111
  5. Manjusha Abraham, MDPediatric Critical Care Medicine Physician1508126699
  6. Philip Abraham, MDHospitalist Physician1720309016

Verify Katherin Elizabeth Portwood in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license 2024030813
    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 Missouri license search

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98% fewer Medicare Part D claims than the average neurology physician in 2024

30 Medicare Part D claims, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Katherin Portwood30
  2. Specialty average1,370

Most prescribed

  1. Carbidopa-Levodopa16 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 one group practice

  1. Washington UniversitySaint Louis, MO

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

Katherin Elizabeth Portwood among 484 neurology physician records in Missouri

Katherin Elizabeth Portwood, MD is one of 484 neurology physician records with a practice address in Missouri. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 74% of them.

  • NPI issued2019 · 74% of these records are older, 23% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2019 · median 2006 among the 285 with a school on file
  • Record last updated2025 · 36% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in Missouri

There are 484 neurology physician records in Missouri.

The 8 neurology physician records with the nearest ZIP codes

  1. Muhammad Al-Lozi, MDSaint Louis, MO 631101689690992
  2. Beau Ances, MDSaint Louis, MO 631101972569085
  3. Giovanni D'Avossa, MDSaint Louis, MO 631101871519181
  4. Marc Diamond, MDSaint Louis, MO 631101255368288
  5. Paul Kotzbauer, MDSaint Louis, MO 631101568488872
  6. Glenn Lopate, MDSaint Louis, MO 631101790701019
  7. Soe Mar, MDSaint Louis, MO 631101659397966
  8. Timothy Miller, MDSaint Louis, MO 631101255356671

Common questions

What is Katherin Elizabeth Portwood, MD's NPI number?

Katherin Elizabeth Portwood, MD's National Provider Identifier (NPI) is 1033672951, issued on Apr 8, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Katherin Elizabeth Portwood, MD located?

The NPPES record lists a practice address at 1 Childrens PL, Saint Louis, MO, 63110. Phone: (314) 362-1408. Providers update this record themselves, so call before visiting.

How can I verify Katherin Elizabeth Portwood, MD's license?

NPPES lists Missouri license number 2024030813, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Katherin Elizabeth Portwood, MD prescribe under Medicare Part D?

In 2024, Katherin Elizabeth Portwood, MD had 30 Medicare Part D claims; the average among neurology physician prescribers was 1,370. 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.