DR. LAUREN J. PRUSNOFSKY FIELD D.O.
NPI 1598025785
Emergency Medicine in Johnson City, NY
About Dr. Lauren J. Prusnofsky Field D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LAUREN J. PRUSNOFSKY FIELD D.O. (NPI 1598025785) is an individual emergency medicine provider in Johnson City, New York, licensed in New York (279937) and active in the NPI registry since May 2012. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Lauren J. Prusnofsky Field D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Lauren Field reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1952358533 (Massachusetts)
- 1,006 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 1,477 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1316987993 (Massachusetts)
- 2,579 clinicians in this Medicare group
Littleton, NH 03561
- Reassigned Medicare billing, New Hampshire enrollment
- Also billed through NPI 1265536718 (New Hampshire)
- 126 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.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 13790 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.
JOHNSON CITY, NY 13790
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 Lauren Field's NPI number?
The NPI number for Lauren Field is 1598025785. It was assigned to this individual provider in the NPPES registry on May 21, 2012.
Where is Lauren Field located?
Lauren Field practices at 33-57 Harrison St, Johnson City, NY 13790. The listed phone number is (607) 763-6412.
What is Lauren Field's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Lauren Field enrolled in Medicare?
Yes. Lauren Field is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Lauren Field's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lauren Field reassigns Medicare benefits to 4 organizations: Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Boston, MA), Beth Israel Deaconess Medical Center, Inc. (Boston, MA), Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA) and Weeks Medical Center (Littleton, NH). 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 Lauren Field'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 Lauren Field was last updated on June 19, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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. Lauren J. Prusnofsky Field, D.O. · NPI 1598025785
Emergency Medicine physician in Johnson City, New York. Individual provider, active in the CMS NPPES registry since May 21, 2012.
## Identity
- **NPI:** 1598025785 (Entity type: Individual)
- **Enumerated:** May 21, 2012
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 279937 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 33-57 HARRISON ST, Johnson City, NY 13790-2107
- **Phone:** (607) 763-6412 · **Fax:** (607) 763-5854
## 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): Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (NPI 1861216038, Boston, MA); Beth Israel Deaconess Medical Center, Inc. (NPI 1548202641, Boston, MA); Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (NPI 1194765438, Boston, MA); Weeks Medical Center (NPI 1578155560, Littleton, NH) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 19, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1598025785) · Data from the CMS NPPES public registry.