MARK W ERHARD MD
NPI 1710962188
Internal Medicine - Interventional Cardiology in Duluth, MN

Q: What is Mark Erhard's NPI number?

The NPI number for Mark Erhard is 1710962188. It was assigned to this individual provider in the NPPES registry on December 8, 2005.

Q: What is Mark Erhard's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Q: When was this NPI record last updated?

The NPPES record for Mark Erhard was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 December 08, 2005PECOS EnrolledAccepts Medicare Assignment

1001 E SUPERIOR ST STE 201, DULUTH, MN 55802(218) 249-5555 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 7, 2023, Feb 7, 2022, Aug 18, 2016 (3 updates tracked since 2016).

On this page

About Mark W Erhard Md NPPES

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

MARK W ERHARD MD (NPI 1710962188) is an individual interventional cardiology provider in Duluth, Minnesota, licensed in Minnesota (32857) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Aspirus Ironwood Hospital, and is a graduate of University Of South Florida College Of Medicine (1986).

NPPES Registry Identity

NPI1710962188

Entity TypeIndividualMale

Primary Taxonomy207RI0011X

Provider Legal NameMARK W ERHARDCredential: MD

Location Address1001 E SUPERIOR ST STE 201Duluth, MN 55802-2228

Mailing Address1001 E Superior St Ste 201Duluth, MN 55802-2228 · (218) 249-5555

Phone(218) 249-5555

Sole ProprietorNo

Medical School CMSUniversity Of South Florida College Of MedicineGraduated 1986

Enumeration DateDecember 8, 2005

Last NPPES UpdateMarch 7, 20233 updates tracked since enumeration

NPPES CertifiedFebruary 7, 2022

✔ NPI 1710962188 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RI0011X

License✔ Licensed in MN · 32857

Definition

An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.

1001 E SUPERIOR ST STE 201, Duluth, MN 55802

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Other Identifiers 1

Medicaid669267200MN

Accepted Insurance

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

Mark W Erhard 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 ID7012906993

PECOS Enrollment IDI20220304001267

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 Mark Erhard reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

St. Luke's Hospital Of Duluth

Same address

Radiation Oncology

1001 E SUPERIOR ST, STE 101
Duluth, MN 55802

Reassigned Medicare billing, Minnesota and Wisconsin enrollments
Also billed through NPI 1396799060 (Wisconsin)
513 clinicians in this Medicare group

NPI 1174577878 (218) 249-7880

Lake View Memorial Hospital, Inc

26 mi

Critical Access

325 11TH AVE
Two Harbors, MN 55616

Reassigned Medicare billing, Minnesota enrollment
95 clinicians in this Medicare group

NPI 1023067642 (218) 834-7300

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 14

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.

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

458 services392 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

156 services155 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

126 services107 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

67 services67 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 93018

An exercise or drug-induced heart stress test with ECG is a procedure to assess how your heart functions under stress. It can involve exercising or medication to make your heart work harder while an ECG records its activity. A physician reviews the results.

37 services37 patients

Nuclear medicine studies of heart muscle at rest and with stress and spect 78452

Nuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.

32 services32 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

25 services24 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

22 services14 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

21 services21 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

18 services18 patients

Ultrasound of heart blood flow, valves and chambers, follow-up 93321

This procedure, an echocardiogram, uses sound waves to create images of your heart. It aids in assessing your heart's blood flow, chambers, and valves. It's a follow-up procedure, ensuring that your heart is functioning properly post-treatment.

17 services16 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

17 services17 patients

Heart rhythm review and interpretation of continous external ekg over 8-15 days 93248

This service involves wearing a device for 8-15 days that continuously records your heart's electrical activity. It helps in identifying irregular heart rhythms. The recorded data is then reviewed and interpreted by a healthcare professional for any abnormalities.

16 services16 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

11 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Aspirus Ironwood Hospital

Critical Access Hospitals · Ironwood, MI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number231333

LocationN10561 Grand View LaneIronwood, MI 49938 · Gogebic County

Emergency services Birthing friendly

University Medical Center-Mesabi/ Mesaba Clinics

Acute Care Hospitals · Hibbing, MN

OwnershipVoluntary non-profit - Other

CMS Certification Number240040

Location750 East 34th StHibbing, MN 55746 · St. Louis County

Birthing friendly

St Lukes Hospital

Acute Care Hospitals · Duluth, MN

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number240047

Location915 East 1st StreetDuluth, MN 55805 · St. Louis County

Emergency services Birthing friendly

Lake View Memorial Hospital

Critical Access Hospitals · Two Harbors, MN

OwnershipVoluntary non-profit - Private

CMS Certification Number241308

Location325 Eleventh AveTwo Harbors, MN 55616 · Lake County

Emergency services

Community Memorial Hospital

Critical Access Hospitals · Cloquet, MN

OwnershipVoluntary non-profit - Private

CMS Certification Number241364

Location512 Skyline BoulevardCloquet, MN 55720 · Carlton County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 55802 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

$127.61 typical visit price

range $56.00 – $168.28

Typical copayment $31.90 (range $14.00 – $42.07)

Most-billed visit code 99204

Established Patient

$98.61 typical visit price

range $18.32 – $138.04

Typical copayment $24.65 (range $4.58 – $34.51)

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.

Other Providers at the Same Location NPPES 8

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

YAN DONG MD

Internal Medicine (Clinical Cardiac Electrophysiology)