LAUREN RUTH BAYER (PA) – Physician Assistant, NPI 1902901408

LAUREN RUTH BAYER (PA) is a healthcare provider. based in Winchester, Massachusetts. specializing in PHYSICIAN ASSISTANT. They hold the professional credentials PA. They hold a License No. 118 (MA). The NPI Number for LAUREN RUTH BAYER (PA) is 1902901408

Main info

Female
41 Years Of Experience
Accepts Medicare Assignment
Name
LAUREN RUTH BAYER (PA)
NPI
1902901408
Phone
Not provided
Address
16 MAXWELL RD
Enumeration Date
13 September 2006
Last Update Date
8 July 2007

Doctor Profile

Medical School Name
OTHER
Secondary Phone
6177325500
Graduation Year
1985 (41 years ago)
PAC ID
3274607155
Group Practice PAC ID
3870405988
Professional Enrollment ID
I20080812000009
Address ID
MA021156110BO75XXXSTXX300
Telehealth
Yes
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience52
Completeness75
Years active:19State licenses:1Digital endpointsOther names

5,091 PHYSICIAN ASSISTANT in MA

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Provider Addresses for LAUREN RUTH BAYER (PA)

  • 16, Maxwell Road, Wedgemere, Winchester, Middlesex County, Massachusetts, 01890, United States

    WINCHESTER, MA 018902919

    Phone:

    Type: Mailing

  • Brigham and Women's Hospital, 75, Francis Street, Roxbury, Boston, Suffolk County, Massachusetts, 02115, United States

    BOSTON, MA 021156110

    Phone: (617) 732-8743

    Fax: (617) 730-2855

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 1 Open Payments records for all available years, with a total value of $64.

Total Amount is formed as General ($64) + Research ($0) + Ownership ($0) = $64.

Last reported payment date: 2023-06-08 • Largest payer in this snapshot: ShockWave Medical, Inc ($64).

Total Amount

$64

General + Research + Ownership

Payments

1

Total payment records

General Amount

$64

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2023-06-08

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
ShockWave Medical, Inc$64
View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2008-08-12

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20080812000009IPhysician AssistantMATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 01890)

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Provider's Procedures

LAUREN RUTH BAYER (PA) performs procedures in PHYSICIAN ASSISTANT. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
PHYSICIAN ASSISTANTMA11042Removal of skin and tissue first 20 sq cm or less8047

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 3870405988View full group profile
NameSpecialtyState
N E U R O S U R G E R YMD
-MA
Critical Care (Intensivists), Pulmonary DiseaseFL
Physician AssistantMA
N E U R O L O G YMA
Nurse PractitionerMA
Orthopedic SurgeryMA
Physician AssistantNH
Nurse PractitionerMA
P A T H O L O G YMA

Reviews

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Frequently asked questions

What is the registry number for LAUREN RUTH BAYER (PA)?
The registry entry for LAUREN RUTH BAYER (PA) shows NPI 1902901408.
Should I treat LAUREN RUTH BAYER (PA) as an active provider?
Patients and plans typically see LAUREN RUTH BAYER (PA) as active in the national extract.
Which specialty label fits LAUREN RUTH BAYER (PA)?
NPPES ties LAUREN RUTH BAYER (PA) to Physician Assistant in the taxonomy section. Clinical services aligned with this taxonomy classification.
What city is tied to LAUREN RUTH BAYER (PA)?
The directory associates LAUREN RUTH BAYER (PA) with Winchester, Massachusetts. Check all listed addresses for suites or satellite offices.
Why is information missing for LAUREN RUTH BAYER (PA)?
Providers choose how much contact data to publish. Missing fields do not mean the profile is fake.

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