NPPES file of Aug 9, 2026

Oscar A. Schwartz, M.D.

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

Oscar A. Schwartz, M.D. is a sleep medicine (internal medicine) physician with a practice address in Saint Louis, Missouri, and NPI 1003807314, issued on Nov 4, 2005. Check the license (Missouri R2B77, 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
1003807314
Name
Oscar A. Schwartz
Credential
M.D.
Primary taxonomy
Sleep Medicine (Internal Medicine) Physician 207RS0012X
License numbers
R2B77 MO
036082038 IL
Self-reported in NPPES; status is on the state search
Practice location
969 N Mason RD, Saint Louis, MO 63141
Phone
(314) 996-8072
Enumerated
Nov 4, 2005
Record last updated
Feb 12, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(314) 996-8167
Medicaid ID
201566726 MO
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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8 nearest sleep medicine (internal medicine) physician records → All 17 in Missouri → Look up another NPI →

Also registered at 969 N Mason RD

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

  1. Craig Boswell, M.D.Plastic Surgery Physician1902947799
  2. Elizabeth Conkling, PAPhysician Assistant1740762673
  3. Martha Council, MDMOHS-Micrographic Surgery Physician1245432244
  4. Karen Forsman, M.D.Dermatology Physician1730179086
  5. Caroline Mann, MDDermatology Physician1013934579
  6. Ann Martin, MDDermatology Physician1225056732

Verify Oscar A. Schwartz 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 R2B77    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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32% more Medicare Part D claims than the average sleep medicine (internal medicine) physician in 2024

773 Medicare Part D claims for 251 beneficiaries, against an average of 585 among the 852 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.

  1. Oscar Schwartz773
  2. Specialty average585

Most prescribed

  1. Trazodone Hcl234 claims
  2. Gabapentin175 claims
  3. Pramipexole Dihydrochloride76 claims
  4. Clonazepam50 claims
  5. Ipratropium Bromide24 claims
  6. Temazepam21 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.

Industry payments in 2024: $136.49

5 payments; by number, the most common kind was food and beverage; the largest payer was Harmony Biosciences LLC. The 664 providers of this specialty with any payment received $3,724.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Oscar Schwartz$136.49
  2. Specialty average$3,724.37

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Oscar A. Schwartz among 17 sleep medicine (internal medicine) physician records in Missouri

Oscar A. Schwartz, M.D. is one of 17 sleep medicine (internal medicine) physician records with a practice address in Missouri. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 88% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileNo · 65% of these records are
  • Record last updated2021 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RS0012X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Sleep Medicine (Internal Medicine) Physician providers in Missouri

There are 17 sleep medicine (internal medicine) physician records in Missouri.

All 17 in Missouri → Every provider in Saint Louis → Sleep Medicine (Internal Medicine) Physician nationwide →

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

  1. Rod Elliott-Mullens, DOSaint Louis, MO 631411447271986
  2. Carlos HimplerSaint Louis, MO 631411295132835
  3. Alvan Omeni, M.D.Saint Louis, MO 631281285965855
  4. Joseph Roland Espiritu, MD, MSPHSt Louis, MO 631101578650362
  5. Shalini Paruthi, M.D.Saint Louis, MO 631061144340936
  6. Julie Sahrmann, D.O.Saint Louis, MO 631031235579491
  7. Rhody Eisenstein, MDChesterfield, MO 630171063558948
  8. Anthony Masi, M.D.Ballwin, MO 630111902884844

Common questions

What is Oscar A. Schwartz, M.D.'s NPI number?

Oscar A. Schwartz, M.D.'s National Provider Identifier (NPI) is 1003807314, issued on Nov 4, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Oscar A. Schwartz, M.D. located?

The NPPES record lists a practice address at 969 N Mason RD, Saint Louis, MO, 63141. Phone: (314) 996-8072. Providers update this record themselves, so call before visiting.

How can I verify Oscar A. Schwartz, M.D.'s license?

NPPES lists Missouri license number R2B77, 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 Oscar A. Schwartz, M.D. prescribe under Medicare Part D?

In 2024, Oscar A. Schwartz, M.D. had 773 Medicare Part D claims for 251 beneficiaries; the average among sleep medicine (internal medicine) physician prescribers was 585. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.