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MARK A SIERRA MD
NPI 1639381593
Internal Medicine - Cardiovascular Disease in West Branch, MI

Active since May 04, 2007PECOS EnrolledAccepts Medicare Assignment
2431 S. M-30, WEST BRANCH, MI 48661(989) 343-3264(989) 343-3202 Get Directions Write a Review

NPPES record last updated: April 25, 2012. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Mark A Sierra Md NPPES

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

MARK A SIERRA MD (NPI 1639381593) is an individual cardiovascular disease provider in West Branch, Michigan, licensed in Michigan (4301086565) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Mclaren Bay Region, and is a graduate of Other (2002).

NPPES Registry Identity

NPI1639381593
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameMARK A SIERRACredential: MD
Location Address2431 S. M-30West Branch, MI 48661-9312
Mailing Address401 S. Bellenger HwyFlint, MI 48532-3638 · (810) 342-1000 · Fax (810) 342-1591
Phone(989) 343-3264
Fax(989) 343-3202
Sole ProprietorNo
Medical School CMSOtherGraduated 2002
Enumeration DateMay 4, 2007
Last NPPES UpdateApril 25, 2012
✔ NPI 1639381593 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in MI · 4301086565
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
2431 S. M-30, West Branch, MI 48661
Open in Google Maps ↗

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, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mark A Sierra 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 ID9032281613
PECOS Enrollment IDI20080627000038
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.

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.

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.
309 services305 patients
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.
210 services176 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.
191 services188 patients
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.
66 services65 patients
Ultrasound of heart with continuous electrocardiogram (ecg) during rest, exercise and/or drug induced stress with review and report 93351
This procedure involves using ultrasound technology to create images of your heart while you rest, exercise, or undergo drug-induced stress. An ECG continuously monitors your heart's electrical activity. It helps doctors assess heart health and function.
22 services22 patients
Ultrasound of heart blood flow, valves and chambers 93320
An ultrasound of your heart, also known as an echocardiogram, is a test that uses sound waves to create detailed images of your heart. It helps doctors check the health of your heart's chambers, valves, and blood flow.
21 services21 patients

Hospital Affiliations CMS Care Compare 4

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

Mclaren Bay Region

Acute Care Hospitals · Bay City, MI
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230041
Location1900 Columbus AveBay City, MI 48708 · Bay County
Emergency services Birthing friendly

Mclaren Central Michigan

Acute Care Hospitals · Mount Pleasant, MI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230080
Location1221 South DriveMount Pleasant, MI 48858 · Isabella County
Emergency services Birthing friendly

Mymichigan Medical Center West Branch

Acute Care Hospitals · West Branch, MI
4/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number230095
Location2463 South M-30West Branch, MI 48661 · Ogemaw County
Emergency services Birthing friendly

Mymichigan Medical Center Midland

Acute Care Hospitals · Midland, MI
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number230222
Location4000 Wellness DriveMidland, MI 48670 · Midland County
Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48661 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
$126.15 typical visit price
range $54.34 – $166.68
Typical copayment $31.53 (range $13.58 – $41.67)
Most-billed visit code 99204
Established Patient
$68.07 typical visit price
range $17.09 – $135.40
Typical copayment $17.01 (range $4.27 – $33.85)
Most-billed visit code 99213
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.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
2 suppliers15 claims15 services$19.77 avg. paid by Medicare
Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466
DME-Other DME · category DE005N
3 suppliers46 claims46 services$916.71 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$111.32 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

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

THOMAS E TOMCZAK JR. MD
Emergency Medicine
2431 S. M-30
WEST BRANCH, MI 48661
Ogemaw County (989) 894-3278

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 Mark Sierra's NPI number?

The NPI number for Mark Sierra is 1639381593. It was assigned to this individual provider in the NPPES registry on May 4, 2007.

Where is Mark Sierra located?

Mark Sierra practices at 2431 S. M-30, West Branch, MI 48661. The listed phone number is (989) 343-3264.

What is Mark Sierra's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Mark Sierra enrolled in Medicare?

Yes. Mark Sierra 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.

What insurance does Mark Sierra accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 2 other insurers list Mark Sierra 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 Mark Sierra affiliated with any hospitals?

According to CMS data, Mark Sierra is affiliated with Mclaren Bay Region, Mclaren Central Michigan, Mymichigan Medical Center West Branch and Mymichigan Medical Center Midland.

When was this NPI record last updated?

The NPPES record for Mark Sierra was last updated on April 25, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.