What is Robert Hacker's NPI number?

Robert Hacker's National Provider Identifier (NPI) is 1295985554, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Robert Hacker's specialty?

Robert Hacker is listed in the NPPES registry with a primary specialty of Vascular Surgery Physician (Allopathic & Osteopathic Physicians).

Where is Robert Hacker located?

Robert Hacker's practice location on file with NPPES is 1300 Hrc Plaza Dr, Lake St Louis, MO 63367-1869.

What is Robert Hacker's phone number?

The practice phone number listed in the NPPES registry for Robert Hacker is (314) 755-1084.

Does Robert Hacker accept Medicare?

Robert Hacker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Robert Hacker's NPI active?

Yes — Robert Hacker's NPI (1295985554) is active in the NPPES registry as of the last update on 2024-01-16.

IndividualActiveAccepts Medicare

Robert Hacker, M.D.

NPI 1295985554 · Vascular Surgery Physician · Lake St Louis, MO

Robert Hacker, M.D. is a Vascular Surgery Physician provider in Lake St Louis, MO (NPI 1295985554).

Provider details

NPI number: 1295985554
Entity type: Individual
Primary specialty: Vascular Surgery PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No
License: MD444137 (PA)

Practice location

1300 Hrc Plaza Dr

Lake St Louis, MO 63367-1869

Phone: (314) 755-1084

Approximate (ZIP-level) locationGet directions

More MO providers

Mailing address

Po Box 1209

Maryland Heights, MO 63043-0209

Specialties & taxonomies

Vascular Surgery PhysicianPrimary2086S0129XLicense 2019008677 (MO)
Allopathic & Osteopathic Physicians
Vascular Surgery Physician2086S0129XLicense MD444137 (PA)
Allopathic & Osteopathic Physicians
Vascular Surgery Physician2086S0129XLicense 252045 (NY)
Allopathic & Osteopathic Physicians
Vascular Surgery Physician2086S0129XLicense 35126367 (OH)
Allopathic & Osteopathic Physicians
Vascular Surgery Physician2086S0129XLicense 46827 (KY)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(88/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure25% of score
18 yrs in NPPES registry
Profile completeness25% of score
100% of core fields populated
Practice footprint15% of score
1 documented practice location
Medicare service volume (vs. specialty peers)25% of score
1,810 Medicare services, 2024 (ranked within specialty)
Open Payments transparency10% of score
Has Open Payments disclosures (2024)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure, Each Additional 15 Minutes99153	289	$11
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	156	$86
Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes99152	141	$47
Ultrasound Study of One Arm Or Leg Veins With Compression and Maneuvers93971	99	$110
Ultrasonic Guidance for Blood Vessel Access76937	87	$36
New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.

Drug	Part D claims (2024)	Beneficiaries
Clopidogrel Bisulfatebrand: Clopidogrel	71	37

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$2,055 across 39 records (Open Payments 2024)

Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.

Enumerated: 2008-09-23
Last updated: 2024-01-16
Certified: 2024-01-16

Frequently asked questions

What is Robert Hacker's NPI number?: Robert Hacker's National Provider Identifier (NPI) is 1295985554, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Robert Hacker's specialty?: Robert Hacker is listed in the NPPES registry with a primary specialty of Vascular Surgery Physician (Allopathic & Osteopathic Physicians).
Where is Robert Hacker located?: Robert Hacker's practice location on file with NPPES is 1300 Hrc Plaza Dr, Lake St Louis, MO 63367-1869.
What is Robert Hacker's phone number?: The practice phone number listed in the NPPES registry for Robert Hacker is (314) 755-1084.
Does Robert Hacker accept Medicare?: Robert Hacker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Robert Hacker's NPI active?: Yes — Robert Hacker's NPI (1295985554) is active in the NPPES registry as of the last update on 2024-01-16.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure, Each Additional 15 Minutes99153	289	$11
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	156	$86
Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes99152	141	$47
Ultrasound Study of One Arm Or Leg Veins With Compression and Maneuvers93971	99	$110
Ultrasonic Guidance for Blood Vessel Access76937	87	$36
New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.

Drug	Part D claims (2024)	Beneficiaries
Clopidogrel Bisulfatebrand: Clopidogrel	71	37

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$2,055 across 39 records (Open Payments 2024)

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments