Physician Profile
Unclaimed ProfileAbout MAYUS
Marcus Mayus, M.D. is a healthcare provider in Greenwich, CT specialising in internal medicine. Marcus trained at New York Medical College, graduating in 2004. Medicare claims data shows Marcus provided 11,448 services to 5,682 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
Areas of Expertise
Common questions
What is Dr. Mayus's specialty?
Dr. Mayus is an internal medicine in Greenwich, CT. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where can I find Dr. Mayus?
Dr. Mayus is listed at 81 HOLLY HILL LN FL 3, Greenwich, CT 06830. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Mayus?
The number on file is (203) 869-5515. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Mayus?
Dr. Mayus's National Provider Identifier is 1073734935. 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. Mayus's medical education?
Dr. Mayus attended New York Medical College, graduating in 2004. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Mayus have?
Dr. Mayus has 22 years experience. Calculated from a graduation year of 2004, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Mayus known for?
According to Medicare billing data, Dr. Mayus performs procedures including removal of impacted ear wax; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and injection of drug or substance under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Mayus's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mayus. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (203) 869-5515
- Email not available
Practice Locations
81 HOLLY HILL LN FL 3
Greenwich, CT 06830
Procedures Most Often Billed to Medicare
11,448 services · 5,682 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of impacted ear wax | Procedure | 69210 |
41 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
575 |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
225 |
| Influenza vaccine, inactivated | Treatment | 90653 |
140 |
| Administration and interpretation of patient-focused health risk assessment | Treatment | 96160 |
53 |
| Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg | Drug given | J3420 |
155 |
| Injection, methylprednisolone acetate, 1 mg | Drug given | J1010 |
29 |
| Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | Office visit | 99490 |
3,235 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
2,595 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
966 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 7
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.
Other internal medicines in Greenwich 8
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at New York Medical College 7
Other providers in the same specialty who trained at the same institution.
Class of 2004 at New York Medical College 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of impacted ear wax 8
Providers in CT who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.