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LACHLAN DRIVER MD
NPI 1194305789
Emergency Medicine in Worcester, MA

Active since April 09, 2021PECOS EnrolledAccepts Medicare Assignment
55 LAKE AVE N, WORCESTER, MA 01655(508) 421-1490(508) 421-1401 Get Directions Write a Review

NPPES record last updated: April 12, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 12, 2026, Jun 26, 2025, Jun 22, 2021 and 1 more (4 updates tracked since 2021).

About Lachlan Driver Md NPPES

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

LACHLAN DRIVER MD (NPI 1194305789) is an individual emergency medicine provider in Worcester, Massachusetts, licensed in Massachusetts (1013425) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with Umass Memorial Healthalliance Hospitals, and is a graduate of Loyola University Of Chicago, Stritch School Of Medicine (2021).

NPPES Registry Identity

NPI1194305789
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameLACHLAN DRIVERCredential: MD
Location Address55 LAKE AVE NWorcester, MA 01655-0002
Mailing Address281 Lincoln St, Provider Enrollment DepartmentWorcester, MA 01605-2138 · (508) 334-8015 · Fax (508) 334-8105
Phone(508) 421-1490
Fax(508) 421-1401
Sole ProprietorNo
Medical School CMSLoyola University Of Chicago, Stritch School Of MedicineGraduated 2021
Enumeration DateApril 9, 2021
Last NPPES UpdateApril 12, 20264 updates tracked since enumeration
NPPES CertifiedApril 12, 2026
✔ NPI 1194305789 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in MA · 1013425
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
55 LAKE AVE N, Worcester, MA 01655
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Other Names 1

Professional Name (2)Lachlan Driver Md

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include 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

Lachlan Driver 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.

PECOS PAC ID2062811912
PECOS Enrollment IDI20250611001857, I20260420003371
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

3

Medicare enrollment records show Lachlan Driver reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Umass Memorial Medical Group Inc
Same address
Internal Medicine
55 LAKE AVE N
Worcester, MA 01655
  • Reassigned Medicare billing, Massachusetts enrollment
  • 2,902 clinicians in this Medicare group
NPI 1760445373 (508) 334-1000
Lifespan Physician Group, Inc.
22 mi
Surgery
2 DUDLEY ST STE 470
Providence, RI 02905
  • Reassigned Medicare billing, Rhode Island enrollment
  • 1,372 clinicians in this Medicare group
NPI 1174484216 (401) 272-1800
Brown Emergency Medicine
36 mi
Emergency Medicine
593 EDDY ST, CLAVERICK 2
Providence, RI 02903
  • Reassigned Medicare billing, Rhode Island enrollment
  • 201 clinicians in this Medicare group
NPI 1962455022 (401) 444-4000

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 2

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

Umass Memorial Healthalliance Hospitals

Acute Care Hospitals · Leominster, MA
2/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number220001
Location60 Hospital RoadLeominster, MA 01453 · Worcester County
Emergency services

The Miriam Hospital

Acute Care Hospitals · Providence, RI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number410012
Location164 Summit AvenueProvidence, RI 02906 · Providence County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01655 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
$90.70 typical visit price
range $58.86 – $177.36
Typical copayment $22.67 (range $14.71 – $44.34)
Most-billed visit code 99203
Established Patient
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
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.

HILLARY R. IRONS MD
Emergency Medicine
55 LAKE AVE N
WORCESTER, MA 01655
Worcester County (508) 421-1400
MS. EILEEN A. DUHAMEL NP
Nurse Practitioner
55 LAKE AVE N, DEPARTMENT OF RADIOLOGY
WORCESTER, MA 01655
Worcester County (508) 334-2710
EWA HRYNISZYN CRNA
Nurse Anesthetist, Certified Registered
55 LAKE AVE N, DEPARTMENT OF ANESTHESIOLOGY
WORCESTER, MA 01655
Worcester County (508) 334-3271
HELEN COPSEY PA-C
Physician Assistant
55 LAKE AVE N
WORCESTER, MA 01655
Worcester County (508) 334-8585
DR. ADEPEJU GBADEBO CHAMPION M.D.
Internal Medicine
55 LAKE AVE N
WORCESTER, MA 01655
Worcester County (508) 334-2731
SOWMYA KORAPATI
Internal Medicine (Hematology & Oncology)
55 LAKE AVE N
WORCESTER, MA 01655
Worcester County (508) 334-3550
LAYLA FAKHRZADEH M.D.
Anesthesiology
55 LAKE AVE N, ANESTHESIOLOGY
WORCESTER, MA 01655
Worcester County (508) 334-3271
YOONYIE CHO M.D.
Anesthesiology
55 LAKE AVE N
WORCESTER, MA 01655
Worcester County (508) 334-1000

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 Lachlan Driver's NPI number?

The NPI number for Lachlan Driver is 1194305789. It was assigned to this individual provider in the NPPES registry on April 9, 2021. The provider is also known as Lachlan Driver MD.

Where is Lachlan Driver located?

Lachlan Driver practices at 55 Lake Ave N, Worcester, MA 01655. The listed phone number is (508) 421-1490.

What is Lachlan Driver's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Lachlan Driver enrolled in Medicare?

Yes. Lachlan Driver 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 Lachlan Driver's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lachlan Driver reassigns Medicare benefits to 3 organizations: Umass Memorial Medical Group Inc (Worcester, MA), Lifespan Physician Group, Inc. (Providence, RI) and Brown Emergency Medicine (Providence, RI). 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 Lachlan Driver's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Lachlan Driver accept?

Health plans from WellSense Health Plan list Lachlan Driver 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 Lachlan Driver affiliated with any hospitals?

According to CMS data, Lachlan Driver is affiliated with Umass Memorial Healthalliance Hospitals and The Miriam Hospital.

When was this NPI record last updated?

The NPPES record for Lachlan Driver was last updated on April 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.