DR. IVAN K IP M.D., MPH
NPI 1144480138
Internal Medicine in Nashua, NH
About Dr. Ivan K Ip M.d., Mph NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. IVAN K IP M.D., MPH (NPI 1144480138) is an individual internal medicine provider in Nashua, New Hampshire, licensed in Massachusetts (250364) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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 (PECOS)
Dr. Ivan K Ip M.d., Mph is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
5Medicare enrollment records show Ivan Ip reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Nashua, NH 03060
- Reassigned Medicare billing, New Hampshire enrollment
- 386 clinicians in this Medicare group
Bedford, NH 03110
- Reassigned Medicare billing, New Hampshire enrollment
- Medicare enrollment name: Catholic Medical Center
- Also billed through NPI 1427154335 (New Hampshire)
- 86 clinicians in this Medicare group
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 clinicians in this Medicare group
Bangor, ME 04401
- Reassigned Medicare billing, New Hampshire enrollment
- 23 clinicians in this Medicare group
Ellsworth, ME 04605
- Reassigned Medicare billing, New Hampshire enrollment
- 49 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 03060 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 Ivan Ip's NPI number?
The NPI number for Ivan Ip is 1144480138. It was assigned to this individual provider in the NPPES registry on June 12, 2008.
Where is Ivan Ip located?
Ivan Ip practices at 172 Kinsley St, Nashua, NH 03060. The listed phone number is (978) 312-4323.
What is Ivan Ip's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Ivan Ip enrolled in Medicare?
Yes. Ivan Ip is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Ivan Ip's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ivan Ip reassigns Medicare benefits to 5 organizations: St Joseph Hospital Of Nashua Nh (Nashua, NH), Cmc D/B/A Urgent Care At Bedford Medical Park (Bedford, NH), Brigham & Womens Physicians Organization Inc (Boston, MA), Nes Medical Services Of New England Inc (Bangor, ME) and Maine Medical Services LLC (Ellsworth, ME). 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 Ivan Ip's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ivan Ip accept?
Health plans from Harvard Pilgrim Health Care list Ivan Ip 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.
When was this NPI record last updated?
The NPPES record for Ivan Ip was last updated on July 27, 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.
# Dr. Ivan K Ip, M.D., MPH · NPI 1144480138
Internal Medicine physician in Nashua, New Hampshire. Individual provider, active in the CMS NPPES registry since June 12, 2008.
## Identity
- **NPI:** 1144480138 (Entity type: Individual)
- **Enumerated:** June 12, 2008
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 250364 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 172 KINSLEY ST, Nashua, NH 03060-3648
- **Phone:** (978) 312-4323
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): St Joseph Hospital Of Nashua Nh (NPI 1093787384, Nashua, NH); Cmc D/B/A Urgent Care At Bedford Medical Park (NPI 1134410319, Bedford, NH); Brigham & Womens Physicians Organization Inc (NPI 1033535497, Boston, MA); Nes Medical Services Of New England Inc (NPI 1396401907, Bangor, ME); Maine Medical Services LLC (NPI 1053878371, Ellsworth, ME) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 27, 2021
- **Other identifiers:** Medicaid 1020607 (VT); Medicaid 32001419 (NH)
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Source: [NPI Profile](https://npiprofile.com/npi/1144480138) · Data from the CMS NPPES public registry.