Physician Profile
Unclaimed ProfileAbout SHAPIRO
Marc Randall Shapiro, MD practices internal medicine in Clearlake, CA. According to Medicare claims data, Marc cared for 85 Medicare patients across 108 services.
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
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (707) 994-7241
- Email not available
Practice Locations
3400 EMERSON ST SUITE A
Clearlake, CA 95422
Procedures Most Often Billed to Medicare
108 services · 85 patients · 1 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
108 |
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.
Also at this address 3
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other internal medicines in Clearlake 4
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1976 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Shapiro specialize in?
Dr. Shapiro is an internal medicine in Clearlake, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where is Dr. Shapiro located?
Dr. Shapiro is listed at 3400 EMERSON ST SUITE A, Clearlake, CA 95422. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Shapiro's phone number?
The number on file is (707) 994-7241. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Shapiro's NPI number?
Dr. Shapiro's National Provider Identifier is 1740217348. 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
Where did Dr. Shapiro go to medical school?
Dr. Shapiro attended Other, graduating in 1976. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Shapiro been practicing?
Dr. Shapiro has 50 years experience. Calculated from a graduation year of 1976, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Shapiro do most often?
According to Medicare billing data, Dr. Shapiro provides treatments such as 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
Has Dr. Shapiro confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Shapiro. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.