DR. DEREK R LIBBY (DO) – Addiction Medicine (Preventive Medicine) Physician, NPI 1184815730

DR. DEREK R LIBBY (DO) is a healthcare provider. based in Portland, Maine. specializing in OSTEOPATHIC MANIPULATIVE MEDICINE. They hold the professional credentials DO. They hold a License No. 1967 (ME). The NPI Number for DR. DEREK R LIBBY (DO) is 1184815730

Main info

Male
Sole Proprietor
23 Years Of Experience
Accepts Medicare Assignment
Name
DR. DEREK R LIBBY (DO)
NPI
1184815730
Phone
(207) 773-3335
Address
97A EXCHANGE ST
Enumeration Date
8 August 2007
Last Update Date
23 September 2022

Doctor Profile

Medical School Name
UNIVERSITY OF NEW ENGLAND, COLLEGE OF OSTEO MEDICINE
Secondary Phone
8006838313
Graduation Year
2003 (23 years ago)
PAC ID
4486721834
Group Practice PAC ID
7810247533
Professional Enrollment ID
I20080926000203
Address ID
ME040053091BI265XXSTXX301
Telehealth
Yes
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience69
Completeness75
Years active:18State licenses:2Digital endpointsOther names

85 OSTEOPATHIC MANIPULATIVE MEDICINE in ME

Loading map...

Provider Addresses for DR. DEREK R LIBBY (DO)

  • 97, Exchange Street, Old Port, Downtown, Portland, Cumberland County, Maine, 04101, United States

    SUITE 201

    PORTLAND, ME 041015016

    Phone: (207) 773-3335

    Fax: (207) 774-4788

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

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: 2008-09-26

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
I20080926000203IOsteopathic Manipulative MedicineMETBD

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 04101)

Loading plans...

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: 7810247533View full group profile
NameSpecialtyState
Nurse PractitionerIN
Nurse PractitionerIN
Family PracticeME
Nurse PractitionerIN
Nurse PractitionerWV
Anesthesiology, Pain ManagementCA
Emergency MedicineIN
Nurse PractitionerIN
Nurse PractitionerKY
Nurse PractitionerKY

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

Can I verify DR. DEREK R LIBBY (DO) with an NPI only?
You can start verification with NPI 1184815730 for DR. DEREK R LIBBY (DO), then check state licensing separately.
Is DR. DEREK R LIBBY (DO) listed as active for patients and plans?
The listing shows DR. DEREK R LIBBY (DO) as active in the NPI system.
What taxonomy line describes DR. DEREK R LIBBY (DO)?
For research purposes, treat DR. DEREK R LIBBY (DO) as Addiction Medicine (Preventive Medicine) Physician in this dataset. Clinical services aligned with this taxonomy classification.
Where is DR. DEREK R LIBBY (DO) based?
DR. DEREK R LIBBY (DO) is tied to Portland, Maine in the data we show; additional addresses may exist on the full record.
How many locations tie to this NPI?
2 practice locations appear in the available data.

Similar Providers

DR. ANDREA TRUNCALI (MD)

Internal Medicine Physician
22 Bramhall St
NPI: 1205814050

DR. KINNA THAKARAR (DO)

Infectious Disease Physician
48 Gilman St
NPI: 1396905048

JONATHAN CARL FELLERS (MD)

Addiction Psychiatry Physician
103, Forest Avenue, Downtown, Portland, Cumberland County, Maine, 04101, United States
NPI: 1508091281

DR. JACOB EMERSON CROTHERS (M.D.)

Addiction Medicine (Preventive Medicine) Physician
BATES MILL NO. 6
NPI: 1336433085

Cortex Behavioral Health

Multi-Specialty Clinic/Center
PO BOX 2613
NPI: 1457823817

PsychMaine

Multi-Specialty Clinic/Center
550 FOREST AVE STE 103
NPI: 1891409025

PURSUECARE ME LLC

Psychiatry Physician
101 CENTERPOINT DR STE 105
NPI: 1649008962