KAREN JENG-MILLER MD
NPI 1720460447
Ophthalmology in Worcester, MA
About Karen Jeng-miller Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN JENG-MILLER MD (NPI 1720460447) is an individual ophthalmology provider in Worcester, Massachusetts, licensed in Massachusetts (278523) and active in the NPI registry since June 2015. She is enrolled in Medicare PECOS, is affiliated with Massachusetts Eye And Ear Infirmary -, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Locations 3
Accepted Insurance
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
Karen Jeng-miller Md 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 Reassignments
5Medicare enrollment records show Karen Jeng-miller reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Worcester, MA 01606
- Reassigned Medicare billing, Massachusetts enrollment
- 718 clinicians in this Medicare group
Worcester, MA 01655
- Reassigned Medicare billing, Massachusetts enrollment
- 2,902 clinicians in this Medicare group
Concord, MA 01742
- Reassigned Medicare billing, Massachusetts enrollment
- 1,317 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 478 clinicians in this Medicare group
Boston, MA 02111
- Reassigned Medicare billing, Massachusetts enrollment
- 106 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 10
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Massachusetts Eye And Ear Infirmary -
Acute Care Hospitals · Boston, MAUmass Memorial Medical Center/University Campus
Acute Care Hospitals · Worcester, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01605 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.
WORCESTER, MA 01605
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 Karen Jeng-miller's NPI number?
The NPI number for Karen Jeng-miller is 1720460447. It was assigned to this individual provider in the NPPES registry on June 19, 2015. The provider is also known as Karen Jeng.
Where is Karen Jeng-miller located?
Karen Jeng-miller practices at 281 Lincoln St, Worcester, MA 01605. The listed phone number is (508) 334-6855.
What is Karen Jeng-miller's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Karen Jeng-miller enrolled in Medicare?
Yes. Karen Jeng-miller 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 organizations bill Medicare for Karen Jeng-miller's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Jeng-miller reassigns Medicare benefits to 5 organizations: Reliant Medical Group, Inc (Worcester, MA), Umass Memorial Medical Group Inc (Worcester, MA), Atrius Health, Inc. (Concord, MA), Massachusetts Eye And Ear Associates, Inc. (Boston, MA) and Pratt Ophthalmology Associates Inc (Boston, MA). 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 Karen Jeng-miller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Karen Jeng-miller accept?
Health plans from Anthem Blue Cross and Blue Sheld, Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 2 other insurers list Karen Jeng-miller as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Karen Jeng-miller affiliated with any hospitals?
According to CMS data, Karen Jeng-miller is affiliated with Massachusetts Eye And Ear Infirmary - and Umass Memorial Medical Center/University Campus.
When was this NPI record last updated?
The NPPES record for Karen Jeng-miller was last updated on April 1, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Karen Jeng-Miller, MD · NPI 1720460447
Ophthalmology physician in Worcester, Massachusetts. Individual provider, active in the CMS NPPES registry since June 19, 2015.
## Identity
- **NPI:** 1720460447 (Entity type: Individual)
- **Enumerated:** June 19, 2015
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** 278523 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 281 LINCOLN ST, Worcester, MA 01605-2138
- **Phone:** (508) 334-6855 · **Fax:** (508) 334-6795
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Reliant Medical Group, Inc (NPI 1720017528, Worcester, MA); Umass Memorial Medical Group Inc (NPI 1760445373, Worcester, MA); Atrius Health, Inc. (NPI 1265655799, Concord, MA); Massachusetts Eye And Ear Associates, Inc. (NPI 1932574332, Boston, MA); Pratt Ophthalmology Associates Inc (NPI 1083660534, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** April 1, 2021
---
Source: [NPI Profile](https://npiprofile.com/npi/1720460447) · Data from the CMS NPPES public registry.