ROBIN SINN (OD) – Optometrist, NPI 1255537262

Optometrist

ROBIN SINN (OD) is a healthcare provider. based in Lancaster, Massachusetts. specializing in Optometrist. They hold the professional credentials OD. They hold a License No. 13243 (CA). The NPI Number for ROBIN SINN (OD) is 1255537262

Main info

Female

19 Years Of Experience

Accepts Medicare Assignment

Name

ROBIN SINN (OD)

NPI

1255537262

Phone

(978) 537-3900

Address

479 OLD UNION TPKE

Enumeration Date

26 June 2007

Last Update Date

3 June 2021

Doctor Profile

Medical School Name

SOUTHERN CALIFORNIA COLLEGE OF OPTOMETRY

Secondary Phone

2023463000

Graduation Year

2007 (19 years ago)

PAC ID

4981798238

Group Practice PAC ID

3779495858

Professional Enrollment ID

I20170927001494

Contacts

SOAP Endpoint

https://careepiceast.kp.org:14430/Interconnect-prodmam/wcf/epic.community.hie/xcpdrespondinggateways

Data current as of

19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology

Experience69

Completeness85

Years active:18State licenses:2Other namesUpdated within 12 months

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Provider Addresses for ROBIN SINN (OD)

479, Old Union Turnpike, Lancaster, Worcester County, Massachusetts, 01453-3312, United States
LANCASTER, MA 015233029
Phone: (978) 537-3900
Fax: (978) 537-6030
Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 01523)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.

PAC ID: 3779495858View full group profile

Name	Specialty	State
BEVERLY HAGNER DARNELL (MD)	-	MD
MS. PAULA GRACE (LCSW C)	-	MD
SOWJANYA BHAGAVATULA (M.D)	Internal Medicine	VA
DR. DAVID LENG (MD)	Family Practice	VA
DR. ROSHAN KALIM (VA)	Family Practice	VA
DR. SHERRY J WEINSTEIN MAYER (MD)	-	MD
DR. STEVEN G CHATLIN (DPM)	-	MD
DR. MEHRAN KHAJAVI (M.D.)	Family Practice	WV
CAROLYN SHERWOOD (PT)	-	GA
MS. COLLEEN MARIE HEALEY (CRNP)	-	MD

Reviews

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Frequently asked questions

What identifier follows ROBIN SINN (OD) across health systems?

The NPI 1255537262 uniquely identifies ROBIN SINN (OD) in U.S. healthcare data.

Quick check: is ROBIN SINN (OD) active?

Public NPPES data shows ROBIN SINN (OD) with an active NPI status right now.

Which specialty label fits ROBIN SINN (OD)?

NPPES ties ROBIN SINN (OD) to Optometrist in the taxonomy section. Clinical services aligned with this taxonomy classification.

Which community is linked to ROBIN SINN (OD)?

ROBIN SINN (OD) shows a connection to Lancaster, Massachusetts in registry-derived data.

Can I verify credentials using only NPI?

NPI confirms identity in the directory; licensure and board certification require separate checks.

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