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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARIA M MOUNTIS DO
NPI 1013961119
Internal Medicine - Advanced Heart Failure and Transplant Cardiology in Cleveland, OH

Active since May 22, 2006PECOS Enrolled
9500 EUCLID AVE, CLEVELAND, OH 44195(216) 636-6101 Get Directions Write a Review

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

About Maria M Mountis Do NPPES

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

MARIA M MOUNTIS DO (NPI 1013961119) is an individual advanced heart failure and transplant cardiology provider in Cleveland, Ohio, licensed in Ohio (34009413) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS, is affiliated with Akron General Medical Center, and is a graduate of Philadelphia College Of Osteopathic Medicine (2001).

NPPES Registry Identity

NPI1013961119
Entity TypeIndividualFemale
Primary Taxonomy207RA0001X
Provider Legal NameMARIA M MOUNTISCredential: DO
Location Address9500 EUCLID AVECleveland, OH 44195-0001
Mailing Address9500 Euclid AveCleveland, OH 44195-0001 · (216) 636-6101
Phone(216) 636-6101
Sole ProprietorNo
Medical School CMSPhiladelphia College Of Osteopathic MedicineGraduated 2001
Enumeration DateMay 22, 2006
Last NPPES UpdateOctober 20, 2026
NPPES CertifiedOctober 20, 2026
✔ NPI 1013961119 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Advanced Heart Failure and Transplant CardiologyAllopathic & Osteopathic Physicians
Taxonomy Code207RA0001X
License✔ Licensed in OH · 34009413
Definition
Specialists in Advanced Heart Failure and Transplant Cardiology would participate in the inpatient and outpatient management of patients with advanced heart failure across the spectrum from consideration for high-risk cardiac surgery, cardiac transplantation, or mechanical circulatory support, to pre-and post-operative evaluation and management of patients with cardiac transplants and mechanical support devices, and end-of-life care for patients with end-stage heart failure.
9500 EUCLID AVE, Cleveland, OH 44195
Open in Google Maps ↗

Accepted Insurance

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

Maria M Mountis Do 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 ID7214940832
PECOS Enrollment IDI20081001000004
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 Reassignment

Medicare enrollment records show Maria Mountis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

The Cleveland Clinic Foundation
0.1 mi
General Acute Care Hospital
9500 EUCLID AVE
Cleveland, OH 44195
  • Reassigned Medicare billing, Ohio enrollment
  • 7,608 clinicians in this Medicare group
NPI 1679525919 (216) 444-2200

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 8

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 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.
167 services139 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
110 services21 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
71 services30 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.
69 services49 patients
Telephone medical discussion with physician, 21-30 minutes 99443
This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.
52 services44 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
26 services26 patients

Hospital Affiliations CMS Care Compare 3

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

Akron General Medical Center

Acute Care Hospitals · Akron, OH
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360027
Location1 Akron General AvenueAkron, OH 44307 · Summit County
Emergency services Birthing friendly

Cleveland Clinic

Acute Care Hospitals · Cleveland, OH
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360180
Location9500 Euclid AvenueCleveland, OH 44195 · Cuyahoga County
Emergency services Birthing friendly

Hillcrest Hospital

Acute Care Hospitals · Mayfield Heights, OH
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360230
Location6780 Mayfield RoadMayfield Heights, OH 44124 · Cuyahoga County
Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 44195 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
$126.12 typical visit price
range $54.34 – $166.65
Typical copayment $31.53 (range $13.58 – $41.66)
Most-billed visit code 99204
Established Patient
$96.44 typical visit price
range $17.10 – $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.

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 supplier12 claims12 services$72.74 avg. paid by Medicare
Portable oxygen concentrator, rental E1392
DME-Oxygen and Supplies · category DC002N
1 supplier12 claims12 services$33.29 avg. paid by Medicare
Automatic external defibrillator, with integrated electrocardiogram analysis, garment type K0606
DME-Other DME · category DE013N
1 supplier12 claims12 services$1,955.94 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 20

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

MS. MARY COLLEEN RATH R.D., L.D., CNSC
Dietitian, Registered
9500 EUCLID AVE, M17
CLEVELAND, OH 44195
Cuyahoga County (216) 444-6986
DR. CHRISTOPHER F TENGGARDJAJA M.D.
Urology (Urogynecology and Reconstructive Pelvic Surgery)
9500 EUCLID AVE, Q10-1
CLEVELAND, OH 44195
Cuyahoga County (216) 444-5600
DR. MASATO FUJIKI M.D., PH.D.
Surgery
9500 EUCLID AVE
CLEVELAND, OH 44195
Cuyahoga County (216) 444-8007
KRISTIN R JOHNSON CNP
Nurse Practitioner
9500 EUCLID AVE
CLEVELAND, OH 44195
Cuyahoga County (800) 223-2273
MONICA LYNN SHEIN CRNA
Nurse Anesthetist, Certified Registered
9500 EUCLID AVE
CLEVELAND, OH 44195
Cuyahoga County (800) 223-2273
MRS. TONYA RENEE GOINGS ACNP-BC
Nurse Practitioner (Acute Care)
9500 EUCLID AVE, SUITE RC25
CLEVELAND, OH 44195
Cuyahoga County (216) 444-2200
MS. DANA ANNE RUBIS CNP
Nurse Practitioner (Critical Care Medicine)
9500 EUCLID AVE, G58
CLEVELAND, OH 44195
Cuyahoga County (216) 444-5086
DR. RACHAEL C SULLIVAN M.D.
Surgery
9500 EUCLID AVE
CLEVELAND, OH 44195
Cuyahoga County (440) 449-1101

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 Maria Mountis's NPI number?

The NPI number for Maria Mountis is 1013961119. It was assigned to this individual provider in the NPPES registry on May 22, 2006.

Where is Maria Mountis located?

Maria Mountis practices at 9500 Euclid Ave, Cleveland, OH 44195. The listed phone number is (216) 636-6101.

What is Maria Mountis's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Advanced Heart Failure and Transplant Cardiology, with taxonomy code 207RA0001X.

Is Maria Mountis enrolled in Medicare?

Yes. Maria Mountis 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 organization bills Medicare for Maria Mountis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maria Mountis reassigns Medicare benefits to The Cleveland Clinic Foundation (Cleveland, OH). The 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 Maria Mountis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Maria Mountis accept?

Health plans from Anthem Blue Cross and Blue Shield and Oscar Insurance Corporation of Ohio list Maria Mountis 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 Maria Mountis affiliated with any hospitals?

According to CMS data, Maria Mountis is affiliated with Akron General Medical Center, Cleveland Clinic and Hillcrest Hospital.

When was this NPI record last updated?

The NPPES record for Maria Mountis was last updated on October 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 days 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.