NPPES file of Aug 9, 2026

Emily L. Libby, MD

Family Medicine Physician · South Portland, ME

Emily L. Libby, MD is a family medicine physician with a practice address in South Portland, Maine, and NPI 1992168710, issued on Mar 30, 2016. Check the license (Maine MD23147, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1992168710
Name
Emily L. Libby
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
MD23147 ME
Self-reported in NPPES; status is on the state search
Practice location
100 Foden RD, East, South Portland, ME 04106
Phone
(207) 874-1489
Enumerated
Mar 30, 2016
Record last updated
Apr 8, 2026
Medicare enrollment
Enrolled (PECOS I20190812001296); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 100 Foden RD, East

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Nathan Bankoff, M.D.Family Medicine Physician1295267094
  2. Fernando Barrera, M.D.Psychiatry Physician1023420221
  3. Erin Campbell, FNPFamily Nurse Practitioner1780393009
  4. Julia Fenton Schnee, LCSWClinical Social Worker1942455563
  5. Riley Goodrich, PA-CPhysician Assistant1346720653
  6. Jeffrey Grassmann, D.O.Family Medicine Physician1750580486

Verify Emily L. Libby in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
    Search for license MD23147
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maine license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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54% fewer Medicare Part D claims than the average family medicine physician in 2024

1,643 Medicare Part D claims for 186 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 18 claims were for opioids.

  1. Emily Libby1,643
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium149 claims
  2. Levothyroxine Sodium131 claims
  3. Lisinopril109 claims
  4. Amlodipine Besylate77 claims
  5. Losartan Potassium62 claims
  6. Hydrochlorothiazide55 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Intermed PASouth Portland, ME

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Emily L. Libby among 1,172 family medicine physician records in Maine

Emily L. Libby, MD is one of 1,172 family medicine physician records with a practice address in Maine. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 77% of them.

  • NPI issued2016 · 77% of these records are older, 21% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2016 · median 2008 among the 668 with a school on file
  • Record last updated2026 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

31 family medicine physician records list a practice address in South Portland

They are 31 of the 1,143 NPPES records with a practice address in South Portland, and 1,172 family medicine physician records in Maine.

The 8 family medicine physician records with the nearest ZIP codes

  1. Matthew Belcher, MDSouth Portland, ME 041061952351223
  2. Stephen Blair, D.O.South Portland, ME 041061992730311
  3. Morgen Buehner, MDSo Portland, ME 041061346315637
  4. Michael Ciampi, M.D.South Portland, ME 041061205862760
  5. Mary Connolly, MDSouth Portland, ME 041061558535559
  6. Megan Driscoll, MDSouth Portland, ME 041061265482152
  7. Jeffrey Grassmann, D.O.South Portland, ME 041061750580486
  8. John Hatzenbuehler, MDSouth Portland, ME 041061699844365

Common questions

What is Emily L. Libby, MD's NPI number?

Emily L. Libby, MD's National Provider Identifier (NPI) is 1992168710, issued on Mar 30, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Emily L. Libby, MD located?

The NPPES record lists a practice address at 100 Foden RD, East, South Portland, ME, 04106. Phone: (207) 874-1489. Providers update this record themselves, so call before visiting.

How can I verify Emily L. Libby, MD's license?

NPPES lists Maine license number MD23147, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Emily L. Libby, MD prescribe under Medicare Part D?

In 2024, Emily L. Libby, MD had 1,643 Medicare Part D claims for 186 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.