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RALPH AVEDISIAN DO
NPI 1316054125
Internal Medicine in Ludington, MI

Active since August 25, 2006PECOS Enrolled
7 N ATKINSON DR, SUITE 111, LUDINGTON, MI 49431(231) 843-3487 Get Directions Write a Review

NPPES record last updated: November 20, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 20, 2018, Apr 17, 2017 (2 updates tracked since 2017).

About Ralph Avedisian Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RALPH AVEDISIAN DO (NPI 1316054125) is an individual internal medicine provider in Ludington, Michigan, licensed in Michigan (5101008322) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1316054125
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameRALPH AVEDISIANCredential: DO
Location Address7 N ATKINSON DR, SUITE 111Ludington, MI 49431-1953
Mailing Address100 Michigan St Ne, Mc 845Grand Rapids, MI 49503-2560
Phone(231) 843-3487
Sole ProprietorNo
Enumeration DateAugust 25, 2006
Last NPPES UpdateNovember 20, 20182 updates tracked since enumeration
✔ NPI 1316054125 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MI · 5101008322
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License 5101008322 (MI)
7 N ATKINSON DR, Ludington, MI 49431
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ralph Avedisian Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Ralph Avedisian reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Sound Inpatient Physicians-Michigan PLLC
98 mi
Internal Medicine
1100 E MICHIGAN AVE
Grayling, MI 49738
  • Reassigned Medicare billing, Michigan enrollment
  • 596 clinicians in this Medicare group
NPI 1639311996 (989) 348-5461
Hospitalist Medicine Physicians Of Michigan, PLLC
186 mi
Internal Medicine
818 RIVERSIDE AVE
Adrian, MI 49221
  • Reassigned Medicare billing, Michigan enrollment
  • 237 clinicians in this Medicare group
NPI 1013180181 (330) 493-4443

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49431 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.15 typical visit price
range $54.34 – $166.68
Typical copayment $31.53 (range $13.58 – $41.67)
Most-billed visit code 99204
Established Patient
$96.44 typical visit price
range $17.09 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier11 claims11 services$21.28 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier11 claims11 services$119.27 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 12

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BRET G. AUTREY D.O., PLLC
Surgery
7 N ATKINSON DR, SUITE 112
LUDINGTON, MI 49431
Mason County (231) 843-3717
DWIGHT W WOOD MD PLC
Ophthalmology
7 N ATKINSON DR, SUITE 115
LUDINGTON, MI 49431
Mason County (231) 845-7373
INTERNAL MEDICINE ASSOCIATES OF LUDINGTON, PC
Internal Medicine
7 N ATKINSON DR, SUITE 111
LUDINGTON, MI 49431
Mason County (231) 843-3487
DR. KANG H LEE MD
Obstetrics & Gynecology
7 N ATKINSON DR, STE 113
LUDINGTON, MI 49431
Mason County (231) 845-7387
SURGICAL ASSOCIATES OF LUDINGTON PC
Surgery
7 N ATKINSON DR, SUITE 112
LUDINGTON, MI 49431
Mason County (231) 843-3717
MEMORIAL MEDICAL CENTER OF WEST MICHIGAN
Clinic/Center (Rural Health)
7 N ATKINSON DR, SUITE 113
LUDINGTON, MI 49431
Mason County (231) 843-3700
CHRISTINA MARIE SIMONE RN, MS, FNP-BC
Nurse Practitioner (Family)
7 N ATKINSON DR, SUITE 111
LUDINGTON, MI 49431
Mason County (231) 843-3487
SPECTRUM HEALTH PRIMARY CARE PARTNERS
Psychiatry & Neurology (Psychiatry)
7 N ATKINSON DR
LUDINGTON, MI 49431
Mason County (231) 845-5085

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ralph Avedisian's NPI number?

The NPI number for Ralph Avedisian is 1316054125. It was assigned to this individual provider in the NPPES registry on August 25, 2006.

Where is Ralph Avedisian located?

Ralph Avedisian practices at 7 N Atkinson Dr Suite 111, Ludington, MI 49431. The listed phone number is (231) 843-3487.

What is Ralph Avedisian's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Ralph Avedisian enrolled in Medicare?

Yes. Ralph Avedisian is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Ralph Avedisian's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ralph Avedisian reassigns Medicare benefits to 2 organizations: Sound Inpatient Physicians-Michigan PLLC (Grayling, MI) and Hospitalist Medicine Physicians Of Michigan, PLLC (Adrian, MI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ralph Avedisian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Ralph Avedisian was last updated on November 20, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.