SHARON LYNN YOST M.D.,
NPI 1306869086
Internal Medicine - Allergy & Immunology in New York, NY
About Sharon Lynn Yost M.d., NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SHARON LYNN YOST M.D., (NPI 1306869086) is an individual allergy & immunology provider in New York, New York, licensed in New York (149014) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of New York Medical College (1979).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Sharon Lynn Yost M.d., is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Sharon Yost reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10003
- Reassigned Medicare billing, New York enrollment
- 10 clinicians in this Medicare group
New York, NY 10029
- Reassigned Medicare billing, New York enrollment
- 18 clinicians in this Medicare group
Staten Island, NY 10314
- Reassigned Medicare billing, New York enrollment
- 9 clinicians in this Medicare group
Huntington, NY 11743
- Reassigned Medicare billing, New York enrollment
- 4 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 10003 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Sharon Yost's NPI number?
The NPI number for Sharon Yost is 1306869086. It was assigned to this individual provider in the NPPES registry on July 25, 2006.
Where is Sharon Yost located?
Sharon Yost practices at 10 Union Sq E, New York, NY 10003. The listed phone number is (212) 844-8105.
What is Sharon Yost's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Allergy & Immunology, with taxonomy code 207RA0201X.
Is Sharon Yost enrolled in Medicare?
Yes. Sharon Yost is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Sharon Yost's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sharon Yost reassigns Medicare benefits to 4 organizations: Monarch Allergy Medical Services Of New York PC (New York, NY), Icahn School Of Medicine At Mount Sinai (New York, NY), Harmony Medical Care, PC (Staten Island, NY) and Asthma & Allergy Medical Care PC (Huntington, NY). Each 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 Sharon Yost'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 Sharon Yost was last updated on May 14, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Sharon Lynn Yost, M.D., · NPI 1306869086
Allergy & Immunology physician in New York, New York. Individual provider, active in the CMS NPPES registry since July 25, 2006.
## Identity
- **NPI:** 1306869086 (Entity type: Individual)
- **Enumerated:** July 25, 2006
- **Primary specialty:** Internal Medicine - Allergy & Immunology · taxonomy 207RA0201X
- **State license:** 149014 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 10 UNION SQ E, New York, NY 10003-3314
- **Phone:** (212) 844-8105
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Monarch Allergy Medical Services Of New York PC (NPI 1457052847, New York, NY); Icahn School Of Medicine At Mount Sinai (NPI 1639430671, New York, NY); Harmony Medical Care, PC (NPI 1164151627, Staten Island, NY); Asthma & Allergy Medical Care PC (NPI 1801982236, Huntington, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York Medical College, class of 1979
## Record status
- **NPPES last updated:** May 14, 2019
- **Other identifiers:** Medicaid 02407023 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1306869086) · Data from the CMS NPPES public registry.