NPPES file of Aug 9, 2026

Robert Hacker, M.D.

Vascular Surgery Physician · Lake St Louis, MO

Robert Hacker, M.D. is a vascular surgery physician with a practice address in Lake St Louis, Missouri, and NPI 1295985554, issued on Sep 23, 2008. Check the license (Missouri 2019008677, 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
1295985554
Name
Robert Hacker
Credential
M.D.
Primary taxonomy
Vascular Surgery Physician 2086S0129X
License numbers
2019008677 MO
46827 KY
252045 NY
35126367 OH
MD444137 PA
Self-reported in NPPES; status is on the state search
Practice location
1300 Hrc Plaza Dr, Lake St Louis, MO 63367
Phone
(314) 755-1084
Enumerated
Sep 23, 2008
Record last updated
Jan 16, 2024
Medicare enrollment
Enrolled (PECOS I20231206000446); accepts Medicare assignment
Medical or professional school
Drexel University College Of Medicine, 2007
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 1300 Hrc Plaza Dr

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

  1. Deena Chihade, M.D.Vascular Surgery Physician1104113802

Verify Robert Hacker 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 2019008677
    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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38% fewer Medicare Part D claims than the average vascular surgery physician in 2024

124 Medicare Part D claims for 66 beneficiaries, against an average of 201 among the 3,936 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Robert Hacker124
  2. Specialty average201

Most prescribed

  1. Clopidogrel71 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: $2,055.29

39 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 4,059 providers of this specialty with any payment received $6,178.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Robert Hacker$2,055.29
  2. Specialty average$6,178.00

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

Bills Medicare through one group practice

  1. St Louis Vascular Surgical Specialists PCAlton, IL

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

Robert Hacker among 101 vascular surgery physician records in Missouri

Robert Hacker, M.D. is one of 101 vascular surgery 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 2008, is newer than 53% of them.

  • NPI issued2008 · 53% of these records are older, 41% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2007 · median 2005 among the 75 with a school on file
  • Record last updated2024 · 33% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0129X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Vascular Surgery Physician providers in Missouri

There are 101 vascular surgery physician records in Missouri.

The 8 vascular surgery physician records with the nearest ZIP codes

  1. Deena Chihade, M.D.Lake St Louis, MO 633671104113802
  2. Scott Gard, M.D.Hannibal, MO 634011659316990
  3. Thomas Schneider, MDSaint Charles, MO 633011700824547
  4. Kent Blanke, DOKirksville, MO 635011841367380
  5. Brent Allen, MDSaint Louis, MO 631411770513319
  6. Arthur Auer, M.D.Saint Louis, MO 631411811004153
  7. Matthew Breite, M.D.Saint Louis, MO 631411114373941
  8. Ketan Desai, M.D.Saint Louis, MO 631411285759985

Common questions

What is Robert Hacker, M.D.'s NPI number?

Robert Hacker, M.D.'s National Provider Identifier (NPI) is 1295985554, issued on Sep 23, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Robert Hacker, M.D. located?

The NPPES record lists a practice address at 1300 Hrc Plaza Dr, Lake St Louis, MO, 63367. Phone: (314) 755-1084. Providers update this record themselves, so call before visiting.

How can I verify Robert Hacker, M.D.'s license?

NPPES lists Missouri license number 2019008677, 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 Robert Hacker, M.D. prescribe under Medicare Part D?

In 2024, Robert Hacker, M.D. had 124 Medicare Part D claims for 66 beneficiaries; the average among vascular surgery physician prescribers was 201. 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.