Brock Donald Libby, MD
Pediatrics Physician · South Portland, ME
Brock Donald Libby, MD is a pediatrics physician with a practice address in South Portland, Maine, and NPI 1205192432, issued on Apr 2, 2012. Check the license (Maine MD22819, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Brock Donald Libby
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- MD22819 ME
Self-reported in NPPES; status is on the state search - Practice location
- 75 John Roberts RD Bldg B, South Portland, ME 04106
- Phone
- (207) 775-4151
- Enumerated
- Apr 2, 2012
- Record last updated
- Jul 25, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190606002227); accepts Medicare assignment
- Medical or professional school
- University Of Vermont College Of Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 75 John Roberts RD Bldg B
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kathryn Best, LCSWClinical Social Worker1861840589
- Russell Britton, MDPediatrics Physician1831121409
- Madonna Browne, M.D.Pediatrics Physician1497857163
- Jonathan Danel, MDPediatrics Physician1447887633
- Ashley Moore, LCPCMental Health Counselor1578124590
- Erin MorneaultPediatrics Physician1588877336
Verify Brock Donald Libby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license MD22819Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average pediatrics physician in 2024
15 Medicare Part D claims, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
The MIPS final score for 2023 (Medicare payment program): 98.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- MainehealthPortland, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
15 pediatrics physician records list a practice address in South Portland
They are 15 of the 1,143 NPPES records with a practice address in South Portland, and 311 pediatrics physician records in Maine.
All 15 in South Portland → All 311 in Maine → Every provider in South Portland →
Other pediatrics physician records in Maine
- Albert Adams, MDBrewer, ME1629006028
- Samuel Adler, MDNorway, ME1487695532
- Farhana Ahmad, M.D.Caribou, ME1205123395
- Ambia Ahmed, MDLewiston, ME1033869466
- Mohammed Al-Nufal, MDAugusta, ME1295155869
- Zainab AlamSkowhegan, ME1316507635
- Lucy Amory, MDWestbrook, ME1275891970
- Joseph Anderson, M.D.Belfast, ME1588756738
- Joseph Anderson, DOLewiston, ME1962853697
- Rebeca Ayala, MDPresque Isle, ME1881619096
Common questions
What is Brock Donald Libby, MD's NPI number?
Brock Donald Libby, MD's National Provider Identifier (NPI) is 1205192432, issued on Apr 2, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Brock Donald Libby, MD located?
The NPPES record lists a practice address at 75 John Roberts RD Bldg B, South Portland, ME, 04106. Phone: (207) 775-4151. Providers update this record themselves, so call before visiting.
How can I verify Brock Donald Libby, MD's license?
NPPES lists Maine license number MD22819, 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 Brock Donald Libby, MD prescribe under Medicare Part D?
In 2024, Brock Donald Libby, MD had 15 Medicare Part D claims; the average among pediatrics physician prescribers was 375. Part D covers Medicare prescriptions only.
What is Brock Donald Libby, MD's MIPS final score?
The 2023 MIPS final score is 98.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.