NPPES file of Aug 9, 2026

Mary B. O'Malley, M.D., PHD.

Psychiatry Physician · Sanford, ME

Mary B. O'Malley, M.D., PHD. is a psychiatry physician with a practice address in Sanford, Maine, and NPI 1649498742, issued on Apr 23, 2007. Check the license 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
1649498742
Name
Mary B. O'Malley
Credential
M.D., PHD.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
242178 MA
Self-reported in NPPES; status is on the state search
Practice location
Smmc, Dept OF Psychiatry, Sanford, ME 04073
Phone
(207) 324-4310
Enumerated
Apr 23, 2007
Record last updated
Jul 28, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20101129000615); 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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Verify Mary B. O'Malley in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaine Board of Licensure in MedicineCheck 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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58% fewer Medicare Part D claims than the average psychiatry physician in 2024

417 Medicare Part D claims for 80 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.

  1. Mary O'Malley417
  2. Specialty average1,000

Most prescribed

  1. Gabapentin30 claims
  2. Quetiapine Fumarate26 claims
  3. Sertraline Hcl23 claims
  4. Trazodone Hcl22 claims
  5. Lamotrigine18 claims
  6. Metformin Hcl18 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.

Industry payments in 2024: $244.65

8 payments; by number, the most common kind was food and beverage; the largest payer was Neurocrine Biosciences, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mary O'Malley$244.65
  2. Specialty average$4,954.93

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. Mccd FL Psychiatry Services PABoston, MA

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

Mary B. O'Malley among 326 psychiatry physician records in Maine

Mary B. O'Malley, M.D., PHD. is one of 326 psychiatry physician records with a practice address in Maine. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 53% of them.

  • NPI issued2007 · 53% of these records are older, 36% newer
  • In a Medicare fileYes · 63% of these records are
  • In the CMS Doctors and Clinicians fileYes · 44% of these records are
  • Graduated1993 · median 2003 among the 142 with a school on file
  • Record last updated2021 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

9 psychiatry physician records list a practice address in Sanford

They are 9 of the 311 NPPES records with a practice address in Sanford, and 326 psychiatry physician records in Maine.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Marie Guay, DOSanford, ME 040731306921648
  2. Marcialee Ledbetter, MDSanford, ME 040731164492567
  3. Altagracia Ramirez, M.D.Sanford, ME 040731235186925
  4. James Ray, DOSanford, ME 040731760548432
  5. Philip Russell, M.D.Sanford, ME 040731073625794
  6. Lisa Sjodin-Feldman, M.D.Sanford, ME 040731023057890
  7. Sophie Trede, MDSanford, ME 040731104575984
  8. Rachel Zinns, MDSanford, ME 040731427369008

Common questions

What is Mary B. O'Malley, M.D., PHD.'s NPI number?

Mary B. O'Malley, M.D., PHD.'s National Provider Identifier (NPI) is 1649498742, issued on Apr 23, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mary B. O'Malley, M.D., PHD. located?

The NPPES record lists a practice address at Smmc, Dept OF Psychiatry, Sanford, ME, 04073. Phone: (207) 324-4310. Providers update this record themselves, so call before visiting.

How can I verify Mary B. O'Malley, M.D., PHD.'s license?

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 Mary B. O'Malley, M.D., PHD. prescribe under Medicare Part D?

In 2024, Mary B. O'Malley, M.D., PHD. had 417 Medicare Part D claims for 80 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.