Daniel M Greif, M.D. practises cardiovascular disease (cardiology) in Guilford, CT. Daniel is a 1997 graduate of University of California, San Francisco School of Medicine. Daniel is also listed as specialising in cardiovascular disease.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Dr. Greif is a cardiovascular disease (cardiology) in Guilford, CT. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CARDIOVASCULAR DISEASE (CARDIOLOGY)”.
NPI registry
Dr. Greif is listed at 111 GOOSE LN, Guilford, CT 06437. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (203) 458-2097. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Greif's National Provider Identifier is 1861673691. 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
Dr. Greif attended University of California, San Francisco School of Medicine, graduating in 1997. This comes from the CMS National Downloadable File.
CMS public data
Dr. Greif has 29 years experience. Calculated from a graduation year of 1997, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Greif 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
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Greif. If this is you, claiming it is free.
Guide.md
Source: NPPES NPI Registry
111 GOOSE LN
Guilford, CT 06437
44 services · 44 patients · 1 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
44 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileConnections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Same specialty, same street address — most likely the same department or group.
Clinically related specialties at the same address — the people this provider most likely works alongside.
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other providers in the same specialty who trained at the same institution.
Providers who graduated from the same medical school in the same year.
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.