CHRISTINA H. HERNON MD
NPI 1437132693
Emergency Medicine in Marlborough, MA
About Christina H. Hernon Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHRISTINA H. HERNON MD (NPI 1437132693) is an individual emergency medicine provider in Marlborough, Massachusetts, licensed in Massachusetts (223362) and active in the NPI registry since November 2005. She is enrolled in Medicare PECOS, is affiliated with Southern Nh Medical Center, and is a graduate of University Of Massachusetts Medical School (2002).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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
Christina H. Hernon 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
3Medicare enrollment records show Christina Hernon reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Ayer, MA 01432
- Reassigned Medicare billing, Massachusetts enrollment
- 290 clinicians in this Medicare group
Nashua, NH 03060
- Reassigned Medicare billing, New Hampshire enrollment
- 28 clinicians in this Medicare group
Brunswick, ME 04011
- Reassigned Medicare billing, New Hampshire and Vermont enrollments
- 41 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 4
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.
Southern Nh Medical Center
Acute Care Hospitals · Nashua, NHValley Regional Hospital
Critical Access Hospitals · Claremont, NHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01752 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.
MARLBOROUGH, MA 01752
MARLBOROUGH, MA 01752
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 Christina Hernon's NPI number?
The NPI number for Christina Hernon is 1437132693. It was assigned to this individual provider in the NPPES registry on November 22, 2005.
Where is Christina Hernon located?
Christina Hernon practices at 157 Union St Department Of Emergency Medicine, Marlborough, MA 01752. The listed phone number is (508) 421-1400.
What is Christina Hernon's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Christina Hernon enrolled in Medicare?
Yes. Christina Hernon 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 Christina Hernon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christina Hernon reassigns Medicare benefits to 3 organizations: Steward Emergency Physicians, Inc (Ayer, MA), Southern New Hampshire Medical Center (Nashua, NH) and Bluewater Emergency Partners Of Brunswick, LLC (Brunswick, 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 Christina Hernon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Christina Hernon accept?
Health plans from Anthem Blue Cross and Blue Shield and WellSense Health Plan list Christina Hernon 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 Christina Hernon affiliated with any hospitals?
According to CMS data, Christina Hernon is affiliated with Southern Nh Medical Center and Valley Regional Hospital.
When was this NPI record last updated?
The NPPES record for Christina Hernon was last updated on November 2, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Christina H. Hernon, MD · NPI 1437132693
Emergency Medicine physician in Marlborough, Massachusetts. Individual provider, active in the CMS NPPES registry since November 22, 2005.
## Identity
- **NPI:** 1437132693 (Entity type: Individual)
- **Enumerated:** November 22, 2005
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 223362 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 157 UNION ST, DEPARTMENT OF EMERGENCY MEDICINE, Marlborough, MA 01752-1228
- **Phone:** (508) 421-1400 · **Fax:** (508) 421-1490
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Steward Emergency Physicians, Inc (NPI 1780971275, Ayer, MA); Southern New Hampshire Medical Center (NPI 1598700940, Nashua, NH); Bluewater Emergency Partners Of Brunswick, LLC (NPI 1043640204, Brunswick, ME) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Massachusetts Medical School, class of 2002
## Record status
- **NPPES last updated:** November 2, 2010
- **Other identifiers:** Medicare UPIN I30221 (MA); Medicaid 2102528 (MA); Medicare PIN UX7283 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1437132693) · Data from the CMS NPPES public registry.