DR. DAVID LAWRENCE HARSANY M.D.
NPI 1841624038
Otolaryngology in Greenwich, CT
About Dr. David Lawrence Harsany M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DAVID LAWRENCE HARSANY M.D. (NPI 1841624038) is an individual otolaryngology provider in Greenwich, Connecticut, licensed in California (G36783) and active in the NPI registry since August 2013. He is enrolled in Medicare PECOS and is a graduate of Northwestern University Feinberg Medical School (1977).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. David Lawrence Harsany M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show David Harsany reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90048
- Reassigned Medicare billing, California enrollment
- 7 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06831 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is David Harsany's NPI number?
The NPI number for David Harsany is 1841624038. It was assigned to this individual provider in the NPPES registry on August 25, 2013.
Where is David Harsany located?
David Harsany practices at 10 Elskip Ln, Greenwich, CT 06831. The listed phone number is (212) 945-1640.
What is David Harsany's specialty?
The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.
Is David Harsany enrolled in Medicare?
Yes. David Harsany is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for David Harsany's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Harsany reassigns Medicare benefits to Martin L. Hopp, MD Phd, A Medical Corp (Los Angeles, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for David Harsany's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for David Harsany was last updated on August 25, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. David Lawrence Harsany, M.D. · NPI 1841624038
Otolaryngology physician in Greenwich, Connecticut. Individual provider, active in the CMS NPPES registry since August 25, 2013.
## Identity
- **NPI:** 1841624038 (Entity type: Individual)
- **Enumerated:** August 25, 2013
- **Primary specialty:** Otolaryngology · taxonomy 207Y00000X
- **State license:** G36783 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 10 ELSKIP LN, Greenwich, CT 06831-3620
- **Phone:** (212) 945-1640
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Martin L. Hopp, MD Phd, A Medical Corp (NPI 1720113954, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Northwestern University Feinberg Medical School, class of 1977
## Record status
- **NPPES last updated:** August 25, 2013
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Source: [NPI Profile](https://npiprofile.com/npi/1841624038) · Data from the CMS NPPES public registry.