DR. GREGORY DAVID HAZERGIAN (D.O.) – Cardiovascular Disease Physician, NPI 1588923734

DR. GREGORY DAVID HAZERGIAN (D.O.) is a healthcare provider. based in Livonia, Michigan. specializing in CARDIOVASCULAR DISEASE (CARDIOLOGY), INTERNAL MEDICINE. They hold the professional credentials D.O.. They hold a License No. 5101019695 (MI). The NPI Number for DR. GREGORY DAVID HAZERGIAN (D.O.) is 1588923734

Main info

Male
Sole Proprietor
8 Years Of Experience
Accepts Medicare Assignment
Name
DR. GREGORY DAVID HAZERGIAN (D.O.)
NPI
1588923734
Phone
(734) 414-1376
Address
3900 W 7 MILE ROAD
Enumeration Date
9 May 2012
Last Update Date
20 December 2024

Doctor Profile

Medical School Name
OTHER
Secondary Phone
3139248417
Graduation Year
2018 (8 years ago)
PAC ID
4981974888
Group Practice PAC ID
8921482605
Professional Enrollment ID
I20180914002459
Address ID
MI481242634DE20200DRXX300
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience62
Completeness75
Years active:14State licenses:1Digital endpointsOther names

1,222 CARDIOVASCULAR DISEASE (CARDIOLOGY) in MI

Provider Addresses for DR. GREGORY DAVID HAZERGIAN (D.O.)

  • 3900 W 7 MILE ROAD

    LIVONIA, MI 48152

    Phone: (734) 414-1376

    Type: Location

  • 40720 Ann Arbor Rd E

    Plymouth, MI 481704447

    Phone: (734) 414-1376

    Type: Location

  • 20200 OUTER DR

    DEARBORN, MI 481242634

    Phone: (313) 624-8417

    Type: Location

  • 28050 GRAND RIVER AVE

    FARMINGTON HILLS, MI 483365919

    Phone: (248) 471-8000

    Type: Mailing

  • 40720 ANN ARBOR RD E

    PLYMOUTH, MI 481704447

    Phone: (734) 414-1376

    Type: Location

  • 1 FORD PL STE 3A

    DETROIT, MI 482023450

    Phone: (313) 874-4806

    Type: Mailing

  • 205 N East Ave

    Jackson, MI 492011753

    Phone: (517) 205-4800

    Type: Location

  • 19850 GIBRALTER RD

    GIBRALTAR, MI 48173

    Phone: (734) 301-3125

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 390 Open Payments records for all available years, with a total value of $6,593.

Total Amount is formed as General ($6,593) + Research ($0) + Ownership ($0) = $6,593.

Last reported payment date: 2024-12-20 • Largest payer in this snapshot: Alnylam Pharmaceuticals Inc. ($725).

Total Amount

$6,593

General + Research + Ownership

Payments

390

Total payment records

General Amount

$6,593

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-20

Latest reported date

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2018-09-14

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20180914002459ICardiovascular Disease (Cardiology)MITBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
93306Ultrasound of heart with color-depicted blood flow, rate, direction and valve function391384$0
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes385199$0
99214Established patient office or other outpatient visit, 30-39 minutes374211$0
93010Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only331237$0
99213Established patient office or other outpatient visit, 20-29 minutes304214$0
View full utilization report →

Insurance plans in this area (ZIP 48152)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 8921482605View full group profile
NameSpecialtyState
Family PracticeMI
Physician AssistantMI
Internal MedicineMI
Interventional Cardiology, Cardiovascular Disease (Cardiology)MI
Nurse PractitionerMI
Physician AssistantMI
Family PracticeMI
Internal MedicineKY
P O D I A T R YMI
Family PracticeMI

Reviews

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Frequently asked questions

Can I use this page to confirm DR. GREGORY DAVID HAZERGIAN (D.O.)'s NPI?
Yes. DR. GREGORY DAVID HAZERGIAN (D.O.) is listed with NPI 1588923734 in the public NPI dataset.
Does the file indicate DR. GREGORY DAVID HAZERGIAN (D.O.) is practicing under active NPI?
Directory data currently reports DR. GREGORY DAVID HAZERGIAN (D.O.) as active.
What taxonomy line describes DR. GREGORY DAVID HAZERGIAN (D.O.)?
For research purposes, treat DR. GREGORY DAVID HAZERGIAN (D.O.) as Cardiovascular Disease Physician in this dataset. Clinical services aligned with this taxonomy classification.
Where should I expect DR. GREGORY DAVID HAZERGIAN (D.O.) on a map?
Expect Livonia, Michigan as a primary anchor for DR. GREGORY DAVID HAZERGIAN (D.O.) unless the record lists multiple sites.
Is the information about DR. GREGORY DAVID HAZERGIAN (D.O.) up to date?
Data updates when providers file changes in NPPES — treat critical facts as "verify if unsure."

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