NPPES file of Aug 9, 2026

Emma Louise Ludwig, MD

Geriatric Medicine (Internal Medicine) Physician · Saint Louis, MO

Emma Louise Ludwig, MD is a geriatric medicine (internal medicine) physician with a practice address in Saint Louis, Missouri, and NPI 1942838552, issued on Mar 30, 2020. Check the license (Missouri 2024024904, 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
1942838552
Name
Emma Louise Ludwig
Credential
MD
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
2024024904 MO
Self-reported in NPPES; status is on the state search
Practice location
10 Barnes West Dr, Saint Louis, MO 63141
Phone
(314) 273-4374
Enumerated
Mar 30, 2020
Record last updated
Apr 17, 2025
Fax
(314) 983-0155
Medicaid ID
200145359 MO
Medicare enrollment
Enrolled (PECOS I20240910002556); accepts Medicare assignment
Medical or professional school
Creighton University School Of Medicine, 2020
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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Also registered at 10 Barnes West Dr

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

  1. Michael Beat, MDRadiation Oncology Physician1053341636
  2. Ellen Binder, MDGeriatric Medicine (Internal Medicine) Physician1578589701
  3. Omar Butt, MDMedical Oncology Physician1750731337
  4. David Carr, MDGeriatric Medicine (Internal Medicine) Physician1093733800
  5. Roberto Civitelli, MDEndocrinology, Diabetes & Metabolism Physician1194743872
  6. Charles Crecelius, MDGeriatric Medicine (Internal Medicine) Physician1215080312

Verify Emma Louise Ludwig 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 2024024904
    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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49% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

2,149 Medicare Part D claims for 201 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 33 claims were for opioids.

  1. Emma Ludwig2,149
  2. Specialty average4,246

Most prescribed

  1. Amlodipine Besylate136 claims
  2. Atorvastatin Calcium123 claims
  3. Losartan Potassium90 claims
  4. Levothyroxine Sodium88 claims
  5. Rosuvastatin Calcium82 claims
  6. Trazodone Hcl82 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 4 group practices

  1. Aging Well Health Care, LLCSaint Louis, MO
  2. Elite Physical Therapy OF Creve Coeur LLCCreve Coeur, MO
  3. Physical Therapy Spine And Sports Medicine LLCBallwin, MO
  4. Washington UniversitySaint Louis, MO

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

Emma Louise Ludwig among 75 geriatric medicine (internal medicine) physician records in Missouri

Emma Louise Ludwig, MD is one of 75 geriatric medicine (internal medicine) physician records with a practice address in Missouri. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 95% of them.

  • NPI issued2020 · 95% of these records are older, 1% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 45% of these records are
  • Graduated2020 · median 1997 among the 34 with a school on file
  • Record last updated2025 · 60% 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 Missouri 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 Missouri

There are 75 geriatric medicine (internal medicine) physician records in Missouri.

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

  1. Muhammad Ali, M.D.Saint Louis, MO 631411790986024
  2. Lakshmi Bandi, M.D.Saint Louis, MO 631411790850188
  3. Ellen Binder, MDSaint Louis, MO 631411578589701
  4. David Carr, MDSaint Louis, MO 631411093733800
  5. Charles Crecelius, MDSaint Louis, MO 631411215080312
  6. Julia Esswein, MDSaint Louis, MO 631411306309323
  7. Ellie Fishbein, MDSaint Louis, MO 631411093339285
  8. Seema Iyer, M.D.Saint Louis, MO 631411437455441

Common questions

What is Emma Louise Ludwig, MD's NPI number?

Emma Louise Ludwig, MD's National Provider Identifier (NPI) is 1942838552, issued on Mar 30, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Emma Louise Ludwig, MD located?

The NPPES record lists a practice address at 10 Barnes West Dr, Saint Louis, MO, 63141. Phone: (314) 273-4374. Providers update this record themselves, so call before visiting.

How can I verify Emma Louise Ludwig, MD's license?

NPPES lists Missouri license number 2024024904, 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 Emma Louise Ludwig, MD prescribe under Medicare Part D?

In 2024, Emma Louise Ludwig, MD had 2,149 Medicare Part D claims for 201 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.

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.