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RONALD DUEMLER MD
NPI 1679524284
Family Medicine - Geriatric Medicine in Grand Rapids, MI

Active since May 16, 2006PECOS EnrolledAccepts Medicare Assignment
200 JEFFERSON AVE SE, GRAND RAPIDS, MI 49503(616) 685-1835(616) 685-1846 Get Directions Write a Review

NPPES record last updated: July 7, 2011. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ronald Duemler Md NPPES

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

RONALD DUEMLER MD (NPI 1679524284) is an individual geriatric medicine provider in Grand Rapids, Michigan, licensed in Michigan (4301050164) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Mercy Health Saint Mary's, and is a graduate of Rush Medical College Of Rush University (1985).

NPPES Registry Identity

NPI1679524284
Entity TypeIndividualMale
Primary Taxonomy207QG0300X
Provider Legal NameRONALD DUEMLERCredential: MD
Location Address200 JEFFERSON AVE SEGrand Rapids, MI 49503-4502
Mailing Address245 State St Se, Ste 228Grand Rapids, MI 49503-4328 · (616) 685-1808 · Fax (616) 685-1850
Phone(616) 685-1835
Fax(616) 685-1846
Sole ProprietorNo
Medical School CMSRush Medical College Of Rush UniversityGraduated 1985
Enumeration DateMay 16, 2006
Last NPPES UpdateJuly 7, 2011
✔ NPI 1679524284 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyFamily Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207QG0300X
License✔ Licensed in MI · 4301050164
Definition
A family medicine physician with special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes, and the hospital.
Also ListedFamily MedicineTaxonomy 207Q00000X · License 4301050164 (MI)
200 JEFFERSON AVE SE, Grand Rapids, MI 49503
Open in Google Maps ↗

Other Identifiers 7

Medicare UPINF63500MI
Medicare ID-Type UnspecifiedM02830111MI
Medicare ID-Type UnspecifiedM69390007MI
Medicaid4846834MI
Medicaid3489002MI
Medicare ID-Type UnspecifiedP32930125MI
Medicaid4877474MI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ronald Duemler Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID143224964
PECOS Enrollment IDI20060911000358
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 Ronald Duemler reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Advantage Health Saint Mary's Medical Group
Same address
Multi-Specialty
200 JEFFERSON SE
Grand Rapids, MI 49503
  • Reassigned Medicare billing, Michigan enrollment
  • 737 clinicians in this Medicare group
NPI 1952340911 (616) 685-5000
Saint Mary's Health Services
Same address
Geriatric Medicine
200 JEFFERSON AVE SE
Grand Rapids, MI 49503
  • Reassigned Medicare billing, Michigan enrollment
  • 42 clinicians in this Medicare group
NPI 1063917425 (616) 776-0682

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

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 99310
A follow-up nursing facility visit is a routine check-up that typically lasts about 35 minutes. During this visit, your health status is evaluated, any changes in your condition are noted, and necessary adjustments to your care plan are made. It's an essential part of maintaining your health.
70 services32 patients
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212
This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.
56 services14 patients
Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes 99350
An established patient home visit is a service where a healthcare professional visits a patient's home for a check-up or treatment. The visit typically lasts for about an hour. This service is especially beneficial for patients who may have difficulty traveling to a healthcare facility.
32 services20 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
27 services14 patients
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and G0180
This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.
22 services17 patients
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306
An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.
18 services17 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mercy Health Saint Mary's

Acute Care Hospitals · Grand Rapids, MI
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number230059
Location200 Jefferson Avenue SEGrand Rapids, MI 49503 · Kent County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49503 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
$84.74 typical visit price
range $54.34 – $166.68
Typical copayment $21.18 (range $13.58 – $41.67)
Most-billed visit code 99203
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 3

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

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260
DME-Hospital Beds · category DB000N
1 supplier11 claims11 services$33.99 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 supplier33 claims33 services$66.28 avg. paid by Medicare
Portable oxygen concentrator, rental E1392
DME-Oxygen and Supplies · category DC002N
1 supplier12 claims12 services$25.96 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 20

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

KATHARINE LIND THOMPSON PT
Physical Therapist
200 JEFFERSON AVE SE
GRAND RAPIDS, MI 49503
Kent County (616) 685-6264
ANNE MARIE TALBOT CRNA
Nurse Anesthetist, Certified Registered
200 JEFFERSON AVE SE
GRAND RAPIDS, MI 49503
Kent County (616) 685-6063
DR. ADAM MICHAEL ANDERSON MD
Emergency Medicine
200 JEFFERSON AVE SE
GRAND RAPIDS, MI 49503
Kent County (616) 685-5000
MARIA E DIMUSTO-POORTENGA MD
Pediatrics (Neonatal-Perinatal Medicine)
200 JEFFERSON AVE SE, NICU
GRAND RAPIDS, MI 49503
Kent County (616) 752-6554
THE BOUTIQUE AT MERCY HEALTH LACKS CANCER CENTER
Durable Medical Equipment & Medical Supplies
200 JEFFERSON AVE SE
GRAND RAPIDS, MI 49503
Kent County (616) 685-5030
MELISSA SUE HUDECZ MS, OTR/L
Occupational Therapist
200 JEFFERSON AVE SE
GRAND RAPIDS, MI 49503
Kent County (616) 685-6264
TIMOTHY RUSSELL LEONARD
Nurse Practitioner (Family)
200 JEFFERSON AVE SE
GRAND RAPIDS, MI 49503
Kent County (616) 465-5910
CAMRIA RENEE DEATON BSN, RN
Registered Nurse
200 JEFFERSON AVE SE
GRAND RAPIDS, MI 49503
Kent County (616) 685-5000

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 Ronald Duemler's NPI number?

The NPI number for Ronald Duemler is 1679524284. It was assigned to this individual provider in the NPPES registry on May 16, 2006.

Where is Ronald Duemler located?

Ronald Duemler practices at 200 Jefferson Ave SE, Grand Rapids, MI 49503. The listed phone number is (616) 685-1835.

What is Ronald Duemler's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Geriatric Medicine, with taxonomy code 207QG0300X.

Is Ronald Duemler enrolled in Medicare?

Yes. Ronald Duemler is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Ronald Duemler's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ronald Duemler reassigns Medicare benefits to 2 organizations: Advantage Health Saint Mary's Medical Group (Grand Rapids, MI) and Saint Mary's Health Services (Grand Rapids, 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 Ronald Duemler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ronald Duemler accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Oscar Insurance Company and 1 other insurer list Ronald Duemler as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Ronald Duemler affiliated with any hospitals?

According to CMS data, Ronald Duemler is affiliated with Mercy Health Saint Mary's.

When was this NPI record last updated?

The NPPES record for Ronald Duemler was last updated on July 7, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.