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DIANA M BISHOP NP
NPI 1447954177
Nurse Practitioner in Chelmsford, MA

Active since March 28, 2023PECOS EnrolledAccepts Medicare Assignment
290 LITTLETON RD UNIT 3, CHELMSFORD, MA 01824(978) 685-2460(978) 685-2460 Get Directions Write a Review

NPPES record last updated: January 12, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jan 12, 2026, Mar 28, 2023 (2 updates tracked since 2023).

About Diana M Bishop Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DIANA M BISHOP NP (NPI 1447954177) is an individual nurse practitioner in Chelmsford, Massachusetts, licensed in Massachusetts (RN2304207) and active in the NPI registry since March 2023. She is enrolled in Medicare PECOS, is affiliated with Winchester Hospital, and is a graduate of Other (2022).

NPPES Registry Identity

NPI1447954177
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameDIANA M BISHOPCredential: NP
Location Address290 LITTLETON RD UNIT 3Chelmsford, MA 01824-3429
Mailing Address290 Littleton Rd Unit 3Chelmsford, MA 01824-3429 · (978) 685-2460 · Fax (978) 685-2460
Phone(978) 685-2460
Fax(978) 685-2460
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateMarch 28, 2023
Last NPPES UpdateJanuary 12, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 12, 2026
✔ NPI 1447954177 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in MA · RN2304207
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
290 LITTLETON RD UNIT 3, Chelmsford, MA 01824
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource (Common Ground Healthcare), WellSense Health Plan.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

Diana M Bishop Np 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.

PECOS PAC ID4486029949
PECOS Enrollment IDI20230414000476
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Diana Bishop reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Lawrence General Community Medical Service PLLC
Same address
Internal Medicine
290 LITTLETON RD UNIT 3
Chelmsford, MA 01824
  • Reassigned Medicare billing, Massachusetts enrollment
  • 58 clinicians in this Medicare group
NPI 1174076418 (978) 685-2460
New England Community Medical Services PLLC
Same address
Internal Medicine
290 LITTLETON RD UNIT 3
Chelmsford, MA 01824
  • Reassigned Medicare billing, Massachusetts enrollment
  • 57 clinicians in this Medicare group
NPI 1427376516 (978) 685-2460
Winchester Lahey Inpatient Specialists PLLC
16 mi
Internal Medicine
41 HIGHLAND AVE
Winchester, MA 01890
  • Reassigned Medicare billing, Massachusetts enrollment
  • 101 clinicians in this Medicare group
NPI 1144770629 (781) 729-9000
Signify Health Medical Associates, PLLC
1,537 mi
General Practice
4055 VALLEY VIEW LN STE 700
Dallas, TX 75244
  • Reassigned Medicare billing, Massachusetts enrollment
  • 203 clinicians in this Medicare group
NPI 1750845863 (972) 715-3800

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Winchester Hospital

Acute Care Hospitals · Winchester, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220105
Location41 Highland AvenueWinchester, MA 01890 · Middlesex County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01824 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

JOE JOSEPH M.D.
Internal Medicine
290 LITTLETON RD UNIT 3
CHELMSFORD, MA 01824
Middlesex County (978) 685-2460
BRUCE PRIVATO NSUBUGA
Nurse Practitioner (Psychiatric/Mental Health)
290 LITTLETON RD UNIT 3
CHELMSFORD, MA 01824
Middlesex County (978) 685-2460
DR. DAGMARA OSMANSKA-JAC M.D
Internal Medicine
290 LITTLETON RD UNIT 3
CHELMSFORD, MA 01824
Middlesex County (978) 685-2460
ANITA KUMAR M.D.
Internal Medicine
290 LITTLETON RD UNIT 3
CHELMSFORD, MA 01824
Middlesex County (978) 685-2460
ANKIT PATEL M.D.
Internal Medicine
290 LITTLETON RD UNIT 3
CHELMSFORD, MA 01824
Middlesex County (978) 685-2460
NAUSHEEN HASSAN M.D.
Internal Medicine (Rheumatology)
290 LITTLETON RD UNIT 3
CHELMSFORD, MA 01824
Middlesex County (978) 685-2460
DR. JANARTHANAN SOMESWARANANTHAN MD
Internal Medicine
290 LITTLETON RD UNIT 3
CHELMSFORD, MA 01824
Middlesex County (978) 685-2460
ILIA MANEVICH M.D.
Internal Medicine
290 LITTLETON RD UNIT 3
CHELMSFORD, MA 01824
Middlesex County (978) 685-2460

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 Diana Bishop's NPI number?

The NPI number for Diana Bishop is 1447954177. It was assigned to this individual provider in the NPPES registry on March 28, 2023.

Where is Diana Bishop located?

Diana Bishop practices at 290 Littleton Rd Unit 3, Chelmsford, MA 01824. The listed phone number is (978) 685-2460.

What is Diana Bishop's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Diana Bishop enrolled in Medicare?

Yes. Diana Bishop 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 Diana Bishop's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diana Bishop reassigns Medicare benefits to 4 organizations: Lawrence General Community Medical Service PLLC (Chelmsford, MA), New England Community Medical Services PLLC (Chelmsford, MA), Winchester Lahey Inpatient Specialists PLLC (Winchester, MA) and Signify Health Medical Associates, PLLC (Dallas, TX). 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 Diana Bishop's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Diana Bishop accept?

Health plans from CareSource (Common Ground Healthcare) and WellSense Health Plan list Diana Bishop 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 Diana Bishop affiliated with any hospitals?

According to CMS data, Diana Bishop is affiliated with Winchester Hospital.

When was this NPI record last updated?

The NPPES record for Diana Bishop was last updated on January 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.