Provider Profile
Mariana Marcu
Unclaimed ProfileAbout Mariana Marcu
Based in New York, NY, Mariana Marcu is listed in the NPI registry under allergy. Mariana is also listed as specializing in internal medicine. Medicare claims data shows Mariana provided 105 services to 27 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more and new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (212) 481-1744
- Email not available
Practice Locations
30E 40TH ST 802
New York, NY 10016
Procedures Most Often Billed to Medicare
105 services · 27 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
93 | More often than most peers in Allergy |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
12 | Less often than most peers in Allergy |
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 allergy specialists in New York 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1987 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Mariana Marcu specialize in?
Mariana Marcu is an allergy in New York, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Mariana Marcu located?
Mariana Marcu is listed at 30E 40Th St 802, New York, NY 10016. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Mariana Marcu's phone number?
The number on file is (212) 481-1744. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Mariana Marcu?
Mariana Marcu's National Provider Identifier is 1336222165. 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 Mariana Marcu train?
Mariana Marcu attended Other, graduating in 1987. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Mariana Marcu have?
Mariana Marcu has 39 years experience. Calculated from a graduation year of 1987, reported in the CMS National Downloadable File.
CMS public data
What does Mariana Marcu do most often?
According to Medicare billing data, Mariana Marcu the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Mariana Marcu's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Mariana Marcu. 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.