NPPES file of Aug 9, 2026

Nadezhda Horchner, M.D.

Internal Medicine Physician · Pittsburgh, PA

Nadezhda Horchner, M.D. is an internal medicine physician with a practice address in Pittsburgh, Pennsylvania, and NPI 1578727822, issued on Jul 16, 2008. Check the license (Pennsylvania 190645, as entered in NPPES) on the Pennsylvania Department of State (PALS); 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
1578727822
Name
Nadezhda Horchner
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
190645 PA
Self-reported in NPPES; status is on the state search
Practice location
580 S Aiken Ave, Pittsburgh, PA 15232
Phone
(412) 687-5040
Enumerated
Jul 16, 2008
Record last updated
May 5, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(412) 687-5044
Medicaid ID
102523626 PA
Medicare enrollment
Enrolled (PECOS I20160707001442); accepts Medicare assignment
Medical or professional school
University Of Vermont College Of Medicine, 2007
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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8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →

Also registered at 580 S Aiken Ave

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

  1. Antonio AchkarRheumatology Physician1770555922
  2. Noah BassRheumatology Physician1114999026
  3. Santosh Bhusal, M.D.Internal Medicine Physician1962631051
  4. Julius BirnbaumRheumatology Physician1932245842
  5. Andreea Coca, MDRheumatology Physician1093868960
  6. Deborah Conway, LCSWSchool Psychologist1871518902

Verify Nadezhda Horchner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license 190645    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 Pennsylvania license search

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2.4 times the Medicare Part D claims of the average internal medicine physician in 2024

7,775 Medicare Part D claims for 838 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 125 claims were for opioids.

  1. Nadezhda Horchner7,775
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium390 claims
  2. Omeprazole345 claims
  3. Losartan Potassium295 claims
  4. Levothyroxine Sodium290 claims
  5. Amlodipine Besylate272 claims
  6. Rosuvastatin Calcium261 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. Healtheast Medical Research InstituteSaint Paul, MN

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

Nadezhda Horchner among 7,300 internal medicine physician records in Pennsylvania

Nadezhda Horchner, M.D. is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 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 2008, is newer than 43% of them.

  • NPI issued2008 · 43% of these records are older, 53% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2007 · median 2008 among the 4,208 with a school on file
  • Record last updated2011 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

750 internal medicine physician records list a practice address in Pittsburgh

They are 750 of the 28,866 NPPES records with a practice address in Pittsburgh, and 7,300 internal medicine physician records in Pennsylvania.

All 7,300 in Pennsylvania → Every provider in Pittsburgh → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Frank Brown, MDPittsburgh, PA 152321922070622
  2. David DemoisePittsburgh, PA 152321174623656
  3. Ellen Dillinger, MDPittsburgh, PA 152321326141995
  4. Michelina Fato, M.D.Pittsburgh, PA 152321790748721
  5. George Gleeson, MDPittsburgh, PA 152321881797454
  6. Thomas Grau, M.D.Pittsburgh, PA 152321366476889
  7. Bernadette HarrisPittsburgh, PA 152321700878774
  8. Elmer Holzinger, MDPittsburgh, PA 152321841393428

Common questions

What is Nadezhda Horchner, M.D.'s NPI number?

Nadezhda Horchner, M.D.'s National Provider Identifier (NPI) is 1578727822, issued on Jul 16, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Nadezhda Horchner, M.D. located?

The NPPES record lists a practice address at 580 S Aiken Ave, Pittsburgh, PA, 15232. Phone: (412) 687-5040. Providers update this record themselves, so call before visiting.

How can I verify Nadezhda Horchner, M.D.'s license?

NPPES lists Pennsylvania license number 190645, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Nadezhda Horchner, M.D. prescribe under Medicare Part D?

In 2024, Nadezhda Horchner, M.D. had 7,775 Medicare Part D claims for 838 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.