DR. MARY B. O'MALLEY M.D., PHD.
NPI 1649498742
Psychiatry & Neurology - Psychiatry in Sanford, ME
About Dr. Mary B. O'malley M.d., Phd. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARY B. O'MALLEY M.D., PHD. (NPI 1649498742) is an individual psychiatry provider in Sanford, Maine, licensed in Massachusetts (242178) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS, maintains a secondary practice location in Great Barrington, and is a graduate of Other (1993).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Mary B. O'malley M.d., Phd. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
7Medicare enrollment records show Mary O'malley reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Watertown, MA 02472
- Reassigned Medicare billing, Massachusetts enrollment
- 1,103 clinicians in this Medicare group
Mansfield Center, CT 06250
- Reassigned Medicare billing, Connecticut enrollment
- 200 clinicians in this Medicare group
Pittsfield, MA 01201
- Reassigned Medicare billing, Massachusetts enrollment
- 394 clinicians in this Medicare group
Norwich, CT 06360
- Reassigned Medicare billing, Connecticut enrollment
- 430 clinicians in this Medicare group
Red Bank, NJ 07701
- Reassigned Medicare billing, New Jersey enrollment
- 306 clinicians in this Medicare group
Red Bank, NJ 07701
- Reassigned Medicare billing, New Jersey enrollment
- 2,844 clinicians in this Medicare group
Jacksonville, FL 32207
- Reassigned Medicare billing, Massachusetts enrollment
- 59 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04073 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Mary O'malley's NPI number?
The NPI number for Mary O'malley is 1649498742. It was assigned to this individual provider in the NPPES registry on April 23, 2007.
Where is Mary O'malley located?
Mary O'malley practices at Smmc, Dept Of Psychiatry 25 June St, Sanford, ME 04073. The listed phone number is (207) 324-4310.
What is Mary O'malley's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Mary O'malley enrolled in Medicare?
Yes. Mary O'malley is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Mary O'malley's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary O'malley reassigns Medicare benefits to 7 organizations: Steward Medical Group, Inc (Watertown, MA), Natchaug Hospital, Inc. (Mansfield Center, CT), Berkshire Medical Center, Inc (Pittsfield, MA), The William W Backus Hospital (Norwich, CT), Hackensack Meridian Health Medical Group - Complex Care PC (Red Bank, NJ) and 2 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mary O'malley's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary O'malley accept?
Health plans from Cigna Healthcare and UnitedHealthcare list Mary O'malley as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Mary O'malley was last updated on July 28, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Mary B. O'malley, M.D., PHD. · NPI 1649498742
Psychiatry physician in Sanford, Maine. Individual provider, active in the CMS NPPES registry since April 23, 2007.
## Identity
- **NPI:** 1649498742 (Entity type: Individual)
- **Enumerated:** April 23, 2007
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 242178 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** SMMC, DEPT OF PSYCHIATRY, 25 JUNE ST, Sanford, ME 04073
- **Phone:** (207) 324-4310
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Steward Medical Group, Inc (NPI 1629398219, Watertown, MA); Natchaug Hospital, Inc. (NPI 1295811321, Mansfield Center, CT); Berkshire Medical Center, Inc (NPI 1295765261, Pittsfield, MA); The William W Backus Hospital (NPI 1467517235, Norwich, CT); Hackensack Meridian Health Medical Group - Complex Care PC (NPI 1154379626, Red Bank, NJ); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1993
## Record status
- **NPPES last updated:** July 28, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1649498742) · Data from the CMS NPPES public registry.