NPPES file of Aug 9, 2026

Curtis Mackay Libby, MD

Glaucoma Specialist (Ophthalmology) Physician · Portland, ME

Curtis Mackay Libby, MD is a glaucoma specialist (ophthalmology) physician with a practice address in Portland, Maine, and NPI 1275534489, issued on Aug 10, 2005. Check the license (Maine MD14219, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1275534489
Name
Curtis Mackay Libby
Credential
MD
Primary taxonomy
Glaucoma Specialist (Ophthalmology) Physician 207WX0009X
License numbers
MD14219 ME
014219 ME
Self-reported in NPPES; status is on the state search
Practice location
15 Lowell St, Portland, ME 04102
Phone
(207) 774-8277
Enumerated
Aug 10, 2005
Record last updated
Oct 12, 2023
Fax
(207) 699-5850
Medicaid ID
266810099 ME
Medicare enrollment
Enrolled (PECOS I20050524000804); accepts Medicare assignment
Medical or professional school
University Of Vermont College Of Medicine, 1991
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 15 Lowell St

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

  1. Nirupama Aggarwal, ODOptometrist1871599928
  2. Jill Amundson, ODOptometrist1710983861
  3. Robert Cady, MDGlaucoma Specialist (Ophthalmology) Physician1174529564
  4. Hannah Calvelli, ODOptometrist1205455847
  5. Benjamin Fowler, MD, PHDOphthalmology Physician1508397050
  6. Hallie Hahn, MDOphthalmology Physician1083238133

Verify Curtis Mackay 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 MD14219
    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

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20% more Medicare Part D claims than the average glaucoma specialist (ophthalmology) physician in 2024

3,686 Medicare Part D claims for 816 beneficiaries, against an average of 3,060 among the 430 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims.

  1. Curtis Libby3,686
  2. Specialty average3,060

Most prescribed

  1. Latanoprost734 claims
  2. Moxifloxacin653 claims
  3. Prednisolone Acetate559 claims
  4. Timolol Maleate471 claims
  5. Lumigan200 claims
  6. Dorzolamide Hcl179 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.

  1. Qualityout of 100 · 30% of the final score86.1
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $592.05

34 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 391 providers of this specialty with any payment received $5,284.60 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Curtis Libby$592.05
  2. Specialty average$5,284.60

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Maine Eye Center PAPortland, ME

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

Glaucoma Specialist (Ophthalmology) Physician providers in Maine

There are 3 glaucoma specialist (ophthalmology) physician records in Maine.

The 2 glaucoma specialist (ophthalmology) physician records with the nearest ZIP codes

  1. Robert Cady, MDPortland, ME 041021174529564
  2. George Shafranov, M.D.Bangor, ME 044011972542322

Common questions

What is Curtis Mackay Libby, MD's NPI number?

Curtis Mackay Libby, MD's National Provider Identifier (NPI) is 1275534489, issued on Aug 10, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Curtis Mackay Libby, MD located?

The NPPES record lists a practice address at 15 Lowell St, Portland, ME, 04102. Phone: (207) 774-8277. Providers update this record themselves, so call before visiting.

How can I verify Curtis Mackay Libby, MD's license?

NPPES lists Maine license number MD14219, 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 Curtis Mackay Libby, MD prescribe under Medicare Part D?

In 2024, Curtis Mackay Libby, MD had 3,686 Medicare Part D claims for 816 beneficiaries; the average among glaucoma specialist (ophthalmology) physician prescribers was 3,060. Part D covers Medicare prescriptions only.

What is Curtis Mackay 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.