NPPES file of Aug 9, 2026

Barbara C. Jost, MD

Allergy & Immunology (Internal Medicine) Physician · Saint Louis, MO

Barbara C. Jost, MD is an allergy & immunology (internal medicine) physician with a practice address in Saint Louis, Missouri, and NPI 1144243031, issued on Jul 25, 2006. Check the license (Missouri 115477, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1144243031
Name
Barbara C. Jost
Credential
MD
Primary taxonomy
Allergy & Immunology (Internal Medicine) Physician 207RA0201X
License number
115477 MO
Self-reported in NPPES; status is on the state search
Practice location
969 N Mason RD Ste 240, Saint Louis, MO 63141
Phone
(314) 542-0606
Enumerated
Jul 25, 2006
Record last updated
Dec 4, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(314) 542-0212
Medicare enrollment
Enrolled (PECOS I20040621000946); accepts Medicare assignment
Medical or professional school
Saint Louis University School Of Medicine, 1998
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 969 N Mason RD Ste 240

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

  1. Jeffrey Tillinghast, M.D.Allergy & Immunology Physician1447393301

Verify Barbara C. Jost 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 115477
    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

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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7.4 times the Medicare Part D claims of the average allergy & immunology (internal medicine) physician in 2024

5,834 Medicare Part D claims for 544 beneficiaries, against an average of 789 among the 429 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 48 claims were for opioids.

  1. Barbara Jost5,834
  2. Specialty average789

Most prescribed

  1. Rosuvastatin Calcium397 claims
  2. Montelukast Sodium258 claims
  3. Levothyroxine Sodium223 claims
  4. Fluticasone Propionate208 claims
  5. Metformin Hcl Er184 claims
  6. Hydrochlorothiazide176 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): 79.5 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 score85.5
  2. Costout of 100 · 30%51.0
  3. Promoting interoperabilitynot scored (reweighted)
  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).

Industry payments in 2024: $1,548.80

72 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 321 providers of this specialty with any payment received $7,456.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Barbara Jost$1,548.80
  2. Specialty average$7,456.30

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

Bills Medicare through 3 group practices

  1. Arnold Physical Therapy And Sports Medicine LLCSaint Louis, MO
  2. Associated Specialists IN Medicine, PCSaint Louis, MO
  3. Elite Physical Therapy OF Creve Coeur LLCCreve Coeur, MO

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

Barbara C. Jost among 28 allergy & immunology (internal medicine) physician records in Missouri

Barbara C. Jost, MD is one of 28 allergy & immunology (internal medicine) physician records with a practice address in Missouri. 86% 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 0% of them.

  • NPI issued2006 · 0% of these records are older, 57% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated1998 · median 2006 among the 20 with a school on file
  • Record last updated2021 · 32% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RA0201X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy & Immunology (Internal Medicine) Physician providers in Missouri

There are 28 allergy & immunology (internal medicine) physician records in Missouri.

The 8 allergy & immunology (internal medicine) physician records with the nearest ZIP codes

  1. Maya Jerath, MDSaint Louis, MO 631411467661801
  2. Shirley Joo, MDSaint Louis, MO 631411144262825
  3. Armen Sanosyan, MDSaint Louis, MO 631411538721295
  4. H Wedner, MDSaint Louis, MO 631411386661809
  5. Tiffany Dy, MDSaint Louis, MO 631291528292174
  6. Omar Elsayed-Ali, MDSaint Louis, MO 631291174064596
  7. Jennifer Monroy, MDSaint Louis, MO 631291669633889
  8. Cheshil Dixit, MDSaint Louis, MO 631271821452863

Common questions

What is Barbara C. Jost, MD's NPI number?

Barbara C. Jost, MD's National Provider Identifier (NPI) is 1144243031, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Barbara C. Jost, MD located?

The NPPES record lists a practice address at 969 N Mason RD Ste 240, Saint Louis, MO, 63141. Phone: (314) 542-0606. Providers update this record themselves, so call before visiting.

How can I verify Barbara C. Jost, MD's license?

NPPES lists Missouri license number 115477, 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 Barbara C. Jost, MD prescribe under Medicare Part D?

In 2024, Barbara C. Jost, MD had 5,834 Medicare Part D claims for 544 beneficiaries; the average among allergy & immunology (internal medicine) physician prescribers was 789. Part D covers Medicare prescriptions only.

What is Barbara C. Jost, MD's MIPS final score?

The 2023 MIPS final score is 79.5 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.