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

DR. NATALIA FENDRIKOVA MAHLAY M.D.
NPI 1396998233
Internal Medicine in Cleveland, OH

Q: What is Natalia Fendrikova Mahlay's NPI number?

The NPI number for Natalia Fendrikova Mahlay is 1396998233. It was assigned to this individual provider in the NPPES registry on October 23, 2008.

Q: What is Natalia Fendrikova Mahlay's specialty?

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

Active since October 23, 2008PECOS EnrolledAccepts Medicare Assignment

9500 EUCLID AVE, M2 ANNEX, CLEVELAND, OH 44195(216) 444-0933(216) 444-8530 Get Directions Write a Review

NPPES record last updated: September 29, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Dr. Natalia Fendrikova Mahlay M.d. NPPES

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

DR. NATALIA FENDRIKOVA MAHLAY M.D. (NPI 1396998233) is an individual internal medicine provider in Cleveland, Ohio, licensed in Ohio (35-092333) and active in the NPI registry since October 2008. She is enrolled in Medicare PECOS, is affiliated with Akron General Medical Center, and is a graduate of Other (1994).

NPPES Registry Identity

NPI1396998233

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameDR. NATALIA FENDRIKOVA MAHLAYCredential: M.D.

Location Address9500 EUCLID AVE, M2 ANNEXCleveland, OH 44195-0001

Mailing Address9500 Euclid Ave, M2 AnnexCleveland, OH 44195-0001 · (216) 444-0933 · Fax (216) 444-8530

Phone(216) 444-0933

Fax(216) 444-8530

Sole ProprietorNo

Medical School CMSOtherGraduated 1994

Enumeration DateOctober 23, 2008

Last NPPES UpdateSeptember 29, 2026

✔ NPI 1396998233 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 OH · 35-092333

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 ListedHospitalistTaxonomy 208M00000X · License 35-092333 (OH)

9500 EUCLID AVE, Cleveland, OH 44195

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Other Identifiers 2

Medicaid2890377OH

Other000000596206OH · Anthem

Accepted Insurance

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

Dr. Natalia Fendrikova Mahlay M.d. 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 ID9537220876

PECOS Enrollment IDI20081205000239

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

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

Select Specialty Hospital - Akron LLC

30 mi

Long Term Care Hospital

200 E MARKET ST
Akron, OH 44308

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

NPI 1649276593 (330) 375-4112

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 20

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.

Ultrasound study of arm or leg veins with compression and maneuvers 93970

An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.

172 services141 patients

Ultrasound of both sides of head and neck blood flow 93880

An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.

149 services147 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.

82 services67 patients

Ultrasound study of one arm or leg veins with compression and maneuvers 93971

This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.

68 services68 patients

Ultrasound study of arm and leg arteries 93922

An ultrasound study of arm and leg arteries is a non-invasive procedure that uses sound waves to create images of your arteries. It helps in checking blood flow, identifying blockages, or detecting other abnormalities in your arteries.

65 services62 patients

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

61 services58 patients

Complete ultrasound of abdomen and pelvis artery and vein blood flow 93975

This procedure uses sound waves to create images of your abdomen and pelvis, specifically focusing on the arteries and veins. It helps in assessing the blood flow and detecting any abnormalities, ensuring your overall well-being.

46 services46 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.

33 services33 patients

Ultrasound of one leg arteries or artery grafts 93926

An ultrasound of leg arteries or artery grafts is a non-invasive test using sound waves to create images of your blood vessels. This helps doctors assess blood flow, identify blockages, and monitor the health of grafts.

30 services30 patients

Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts 93978

This procedure involves using sound waves to create images of your aorta, vena cava, groin vessels, or bypass grafts. It helps to detect abnormalities or blockages, ensuring your blood flows smoothly. It's painless and non-invasive.

25 services25 patients

Ultrasound of arm arteries or artery grafts 93930

An ultrasound of arm arteries or artery grafts involves using sound waves to create images of your arm's blood vessels. This helps evaluate blood flow and detect issues like blockages or narrowing. It's non-invasive, painless, and safe.

24 services24 patients

Ultrasound of hemodialysis access 93990

An ultrasound of hemodialysis access is a non-invasive procedure that uses sound waves to create images of your dialysis access site. It helps monitor the access site's health and detect any potential issues like blockages or narrowing.

24 services23 patients

Ultrasound of one arm arteries or artery grafts 93931

An ultrasound of arm arteries or artery grafts is a non-invasive imaging test. It uses sound waves to create pictures of the arteries in your arm or of an artery graft. This helps to check blood flow and identify any blockages or abnormalities. It's painless and safe.

20 services20 patients

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.

20 services19 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.

20 services16 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.

19 services19 patients

Complete ultrasound study of arm and leg arteries 93923

This procedure involves using sound waves to produce images of your arm and leg arteries. It helps identify blockages or abnormalities that could lead to conditions like stroke or peripheral artery disease. It's non-invasive and painless.

18 services18 patients

Ultrasound of leg arteries or artery grafts 93925

An ultrasound of leg arteries or artery grafts is a non-invasive imaging test. It uses high-frequency sound waves to capture live images from inside your body, specifically your leg arteries or grafts. This helps in detecting any blockages or abnormalities.

17 services16 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

16 services15 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.

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.

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

Medina Hospital

Acute Care Hospitals · Medina, OH

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number360091

Location1000 East Washington StreetMedina, OH 44256 · Medina County

Emergency services

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

Cleveland Clinic Avon Hospital

Acute Care Hospitals · Avon, OH

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number360364

Location33300 Cleveland Clinic BlvdAvon, OH 44011 · Lorain County

Emergency services

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.

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 Natalia Fendrikova Mahlay's NPI number?

The NPI number for Natalia Fendrikova Mahlay is 1396998233. It was assigned to this individual provider in the NPPES registry on October 23, 2008.

Where is Natalia Fendrikova Mahlay located?

Natalia Fendrikova Mahlay practices at 9500 Euclid Ave M2 Annex, Cleveland, OH 44195. The listed phone number is (216) 444-0933.

What is Natalia Fendrikova Mahlay's specialty?

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

Is Natalia Fendrikova Mahlay enrolled in Medicare?

Yes. Natalia Fendrikova Mahlay 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 Natalia Fendrikova Mahlay's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Natalia Fendrikova Mahlay reassigns Medicare benefits to 2 organizations: The Cleveland Clinic Foundation (Cleveland, OH) and Select Specialty Hospital - Akron LLC (Akron, 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 Natalia Fendrikova Mahlay's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Natalia Fendrikova Mahlay accept?

Health plans from Anthem Blue Cross and Blue Shield, Antidote Health Plan of Ohio, Inc. and Oscar Insurance Corporation of Ohio list Natalia Fendrikova Mahlay 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 Natalia Fendrikova Mahlay affiliated with any hospitals?

According to CMS data, Natalia Fendrikova Mahlay is affiliated with Akron General Medical Center, Medina Hospital, Cleveland Clinic, Hillcrest Hospital and Cleveland Clinic Avon Hospital.

When was this NPI record last updated?

The NPPES record for Natalia Fendrikova Mahlay was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 41 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.