MATTHEW C RIESEN MD
NPI 1497947998
General Practice in Saint Marys, OH

Q: What is Matthew Riesen's NPI number?

The NPI number for Matthew Riesen is 1497947998. It was assigned to this individual provider in the NPPES registry on August 17, 2007.

Q: What is Matthew Riesen's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

Q: When was this NPI record last updated?

The NPPES record for Matthew Riesen was last updated on March 1, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.

Active since August 17, 2007PECOS EnrolledAccepts Medicare Assignment

1132 HAGER ST, SAINT MARYS, OH 45885(419) 394-5851(419) 394-0702 Get Directions Write a Review

NPPES record last updated: March 1, 2013. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Matthew C Riesen Md NPPES

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

MATTHEW C RIESEN MD (NPI 1497947998) is an individual general practice provider in Saint Marys, Ohio, licensed in Ohio (35. 099958) and active in the NPI registry since August 2007. He is enrolled in Medicare PECOS, is affiliated with Lima Memorial Health System, and is a graduate of Toledo Medical College (2007).

NPPES Registry Identity

NPI1497947998

Entity TypeIndividualMale

Primary Taxonomy208D00000X

Provider Legal NameMATTHEW C RIESENCredential: MD

Location Address1132 HAGER STSaint Marys, OH 45885-2423

Mailing Address1132 Hager St, #600Saint Marys, OH 45885-2423 · (419) 394-5851 · Fax (419) 394-0702

Phone(419) 394-5851

Fax(419) 394-0702

Sole ProprietorNo

Medical School CMSToledo Medical CollegeGraduated 2007

Enumeration DateAugust 17, 2007

Last NPPES UpdateMarch 1, 2013

✔ NPI 1497947998 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians

Taxonomy Code208D00000X

License✔ Licensed in OH · 35. 099958

Definition

A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee

1132 HAGER ST, Saint Marys, OH 45885

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, CareSource.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

Matthew C Riesen 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 ID7810132685

PECOS Enrollment IDI20130327000067

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

Medicare enrollment records show Matthew Riesen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

St Marys Medical Group Inc.

Same address

Family Medicine

1132 HAGER ST
Saint Marys, OH 45885

Reassigned Medicare billing, Ohio enrollment

NPI 1922110642 (419) 394-5851

Mercer County Joint Township Community Hospital

15 mi

General Acute Care Hospital

800 W. MAIN ST.
Coldwater, OH 45828

Reassigned Medicare billing, Ohio enrollment
115 clinicians in this Medicare group

NPI 1497784144 (419) 678-2341

Incare Health Solutions LLC

68 mi

Internal Medicine

175 EDGEFIELD BLVD
Marion, OH 43302

Reassigned Medicare billing, Ohio enrollment
221 clinicians in this Medicare group

NPI 1235422403 (740) 751-6433

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 5

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

820 services335 patients

Injection, dexamethasone sodium phosphate, 1 mg J1100

Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.

57 services26 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

51 services51 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

26 services26 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

18 services18 patients

Hospital Affiliations CMS Care Compare 5

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

Lima Memorial Health System

Acute Care Hospitals · Lima, OH

3/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number360009

Location1001 Bellefontaine AvenueLima, OH 45804 · Allen County

Emergency services Birthing friendly

Wilson Memorial Hospital

Acute Care Hospitals · Sidney, OH

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number360013

Location915 West Michigan StreetSidney, OH 45365 · Shelby County

Emergency services Birthing friendly

Grand Lake Health System

Acute Care Hospitals · Saint Marys, OH

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number360032

Location200 Saint Clair StreetSaint Marys, OH 45885 · Auglaize County

Emergency services Birthing friendly

Mercer County Joint Township Community Hospital

Acute Care Hospitals · Coldwater, OH

4/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number360058

Location800 West Main StreetColdwater, OH 45828 · Mercer County

Birthing friendly

Mercy Health-St Rita's Medical Center

Acute Care Hospitals · Lima, OH

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number360066

Location730 West Market StreetLima, OH 45801 · Allen County

Emergency services Birthing friendly

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.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

6 suppliers31 claims64 services$5.42 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

2 suppliers16 claims16 services$86.64 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

4 suppliers37 claims37 services$200.94 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 3

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

ALFREDO ARUGAY PAGUIRIGAN M.D.

Family Medicine (Geriatric Medicine)

1132 HAGER ST
ST MARYS, OH 45885

Auglaize County (419) 394-5851

LMH HEART INSTITUTE OF NORTHWEST OHIO, LLC

Internal Medicine (Cardiovascular Disease)

1132 HAGER ST
SAINT MARYS, OH 45885

Auglaize County (419) 224-5915

ST MARYS MEDICAL GROUP INC.

Family Medicine

1132 HAGER ST
SAINT MARYS, OH 45885

Auglaize County (419) 394-5851

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 Matthew Riesen's NPI number?

The NPI number for Matthew Riesen is 1497947998. It was assigned to this individual provider in the NPPES registry on August 17, 2007.

Where is Matthew Riesen located?

Matthew Riesen practices at 1132 Hager St, Saint Marys, OH 45885. The listed phone number is (419) 394-5851.

What is Matthew Riesen's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

Is Matthew Riesen enrolled in Medicare?

Yes. Matthew Riesen 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 Matthew Riesen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Riesen reassigns Medicare benefits to 3 organizations: St Marys Medical Group Inc. (Saint Marys, OH), Mercer County Joint Township Community Hospital (Coldwater, OH) and Incare Health Solutions LLC (Marion, OH). 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 Matthew Riesen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Matthew Riesen accept?

Health plans from Anthem Blue Cross and Blue Shield and CareSource list Matthew Riesen 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 Matthew Riesen affiliated with any hospitals?

According to CMS data, Matthew Riesen is affiliated with Lima Memorial Health System, Wilson Memorial Hospital, Grand Lake Health System, Mercer County Joint Township Community Hospital and Mercy Health-St Rita's Medical Center.

When was this NPI record last updated?

The NPPES record for Matthew Riesen was last updated on March 1, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.