NPPES file of Aug 9, 2026

Alexandros N. Vgontzas, MD

Sleep Medicine (Psychiatry & Neurology) Physician · Hummelstown, PA

Alexandros N. Vgontzas, MD is a sleep medicine (psychiatry & neurology) physician with a practice address in Hummelstown, Pennsylvania, and NPI 1578515524, issued on May 17, 2006. Check the license (Pennsylvania MD040248L, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1578515524
Name
Alexandros N. Vgontzas
Credential
MD
Primary taxonomy
Sleep Medicine (Psychiatry & Neurology) Physician 2084S0012X
License number
MD040248L PA
Self-reported in NPPES; status is on the state search
Practice location
1214 Research Blvd Ste 1159, Hummelstown, PA 17036
Phone
(717) 531-8520
Enumerated
May 17, 2006
Record last updated
Jan 8, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(717) 531-0678
Medicaid ID
0011741670001 PA
Medicare enrollment
Enrolled (PECOS I20100126000686); 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 1214 Research Blvd Ste 1159

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

  1. Kristina Lenker, PH.D.Psychologist1295354256

Verify Alexandros N. Vgontzas 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 MD040248L
    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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69% fewer Medicare Part D claims than the average sleep medicine (psychiatry & neurology) physician in 2024

202 Medicare Part D claims for 30 beneficiaries, against an average of 655 among the 377 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Alexandros Vgontzas202
  2. Specialty average655

Most prescribed

  1. Trazodone Hcl46 claims
  2. Modafinil34 claims
  3. Methylphenidate Hcl15 claims
  4. Temazepam12 claims
  5. Sodium Oxybate11 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 practice group's MIPS final score for 2023 (Medicare payment program): 71.8 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score48.3
  2. Costout of 100 · 30%57.6
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. The Milton S Hershey Medical Center Physicians GroupHummelstown, PA

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

Alexandros N. Vgontzas among 24 sleep medicine (psychiatry & neurology) physician records in Pennsylvania

Alexandros N. Vgontzas, MD is one of 24 sleep medicine (psychiatry & neurology) physician records with a practice address in Pennsylvania. 79% 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 4% of them.

  • NPI issued2006 · 4% of these records are older, 58% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated1978 · median 2001 among the 17 with a school on file
  • Record last updated2018 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084S0012X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Sleep Medicine (Psychiatry & Neurology) Physician providers in Pennsylvania

There are 24 sleep medicine (psychiatry & neurology) physician records in Pennsylvania.

The 8 sleep medicine (psychiatry & neurology) physician records with the nearest ZIP codes

  1. Venkatesh Krishnamurthy, M.D.Hershey, PA 170331427288539
  2. Sam Al-Saadi, M.D.Harrisburg, PA 171091760674774
  3. Kawish Garg, MDChambersburg, PA 172011013164342
  4. Katelyn Smith, D.O.Port Matilda, PA 168701376830612
  5. Annaliise Hayrynen, DOMeadville, PA 163351336609205
  6. Stuart Hoffman, D.O.Danville, PA 178221649249848
  7. Evelyn Mai, M.D.Danville, PA 178221538360904
  8. Joshua Hitchings, MDFountain Hill, PA 180151063075794

Common questions

What is Alexandros N. Vgontzas, MD's NPI number?

Alexandros N. Vgontzas, MD's National Provider Identifier (NPI) is 1578515524, issued on May 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Alexandros N. Vgontzas, MD located?

The NPPES record lists a practice address at 1214 Research Blvd Ste 1159, Hummelstown, PA, 17036. Phone: (717) 531-8520. Providers update this record themselves, so call before visiting.

How can I verify Alexandros N. Vgontzas, MD's license?

NPPES lists Pennsylvania license number MD040248L, 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 Alexandros N. Vgontzas, MD prescribe under Medicare Part D?

In 2024, Alexandros N. Vgontzas, MD had 202 Medicare Part D claims for 30 beneficiaries; the average among sleep medicine (psychiatry & neurology) physician prescribers was 655. Part D covers Medicare prescriptions only.

What is Alexandros N. Vgontzas, MD's MIPS final score?

The 2023 MIPS final score is 71.8 of 100, reported for the practice group. 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.