AIMEE C. KOBJACK MD
NPI 1104358001
Family Medicine in Harvard, MA
About Aimee C. Kobjack Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AIMEE C. KOBJACK MD (NPI 1104358001) is an individual family medicine provider in Harvard, Massachusetts, licensed in Massachusetts (282879) and active in the NPI registry since March 2017. She is enrolled in Medicare PECOS, is affiliated with Umass Memorial Healthalliance Hospitals, and is a graduate of University Of Massachusetts Medical School (2017).
NPPES Registry Identity
Specialties & Licenses 2
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
Aimee C. Kobjack 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 Reassignment
Medicare enrollment records show Aimee Kobjack reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Worcester, MA 01655
- Reassigned Medicare billing, Massachusetts enrollment
- 2,902 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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Umass Memorial Healthalliance Hospitals
Acute Care Hospitals · Leominster, MAEmerson Hospital -
Acute Care Hospitals · W Concord, MAUmass Memorial Medical Center/University Campus
Acute Care Hospitals · Worcester, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01451 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 4
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 Aimee Kobjack's NPI number?
The NPI number for Aimee Kobjack is 1104358001. It was assigned to this individual provider in the NPPES registry on March 30, 2017.
Where is Aimee Kobjack located?
Aimee Kobjack practices at 198 Ayer Rd, Harvard, MA 01451. The listed phone number is (978) 456-2355.
What is Aimee Kobjack's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Aimee Kobjack enrolled in Medicare?
Yes. Aimee Kobjack 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 Aimee Kobjack's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Aimee Kobjack reassigns Medicare benefits to Umass Memorial Medical Group Inc (Worcester, MA). 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 Aimee Kobjack's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Aimee Kobjack accept?
Health plans from Taro Health list Aimee Kobjack 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 Aimee Kobjack affiliated with any hospitals?
According to CMS data, Aimee Kobjack is affiliated with Umass Memorial Healthalliance Hospitals, Emerson Hospital - and Umass Memorial Medical Center/University Campus.
When was this NPI record last updated?
The NPPES record for Aimee Kobjack was last updated on October 24, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Aimee C. Kobjack, MD · NPI 1104358001
Family Medicine physician in Harvard, Massachusetts. Individual provider, active in the CMS NPPES registry since March 30, 2017.
## Identity
- **NPI:** 1104358001 (Entity type: Individual)
- **Enumerated:** March 30, 2017
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 282879 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 198 AYER RD, Harvard, MA 01451-1163
- **Phone:** (978) 456-2355 · **Fax:** (978) 456-2356
## 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:** Umass Memorial Medical Group Inc (NPI 1760445373, Worcester, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Massachusetts Medical School, class of 2017
## Record status
- **NPPES last updated:** October 24, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1104358001) · Data from the CMS NPPES public registry.