Physician Profile
Mark A Sierra, MD
Unclaimed ProfileAbout Dr. Sierra
Mark A Sierra, MD is a healthcare provider in West Branch, MI specializing in cardiovascular disease (cardiology). Mark is also listed as specializing in cardiovascular disease. Medicare claims data shows Mark provided 852 services to 810 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (989) 343-3264
- Email not available
Practice Locations
2431 S. M-30
West Branch, MI 48661
Conditions Commonly Evaluated or Treated
Within Cardiovascular Disease generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Procedures & services
Most searched procedures
Procedures Most Often Billed to Medicare
852 services · 810 patients · 8 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
309 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
210 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician | Treatment | 93018 |
191 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
66 |
| Ultrasound of heart with continuous electrocardiogram (ecg) during rest, exercise and/or drug induced stress with review and report | Treatment | 93351 |
22 |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | Treatment | 93325 |
21 |
| Ultrasound of heart blood flow, valves and chambers | Treatment | 93320 |
21 |
| Ultrasound of heart, follow-up | Treatment | 93308 |
12 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other cardiovascular diseases at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2002 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 8
Providers in MI who bill this service to Medicare most often.
Common questions
What is Dr. Sierra's specialty?
Dr. Sierra is a cardiovascular disease (cardiology) in West Branch, MI. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CARDIOVASCULAR DISEASE (CARDIOLOGY)”.
NPI registry
Where can I find Dr. Sierra?
Dr. Sierra is listed at 2431 S. M-30, West Branch, MI 48661. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Sierra?
The number on file is (989) 343-3264. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Sierra?
Dr. Sierra's National Provider Identifier is 1639381593. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Sierra's medical education?
Dr. Sierra attended Other, graduating in 2002. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Sierra have?
Dr. Sierra has 24 years experience. Calculated from a graduation year of 2002, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Sierra known for?
According to Medicare billing data, Dr. Sierra provides treatments such as ultrasound of heart with color-depicted blood flow, rate, direction and valve function and routine electrocardiogram using at least 12 leads with interpretation and report only. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Sierra's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Sierra. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.