ALAN E GELLER M.D.
NPI 1629040282
Psychiatry & Neurology - Neurodevelopmental Disabilities in Weymouth, MA

Q: What is Alan Geller's NPI number?

The NPI number for Alan Geller is 1629040282. It was assigned to this individual provider in the NPPES registry on February 7, 2006.

Q: What is Alan Geller's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurodevelopmental Disabilities, with taxonomy code 2084P0005X.

Q: When was this NPI record last updated?

The NPPES record for Alan Geller was last updated on August 2, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.

Active since February 07, 2006PECOS EnrolledAccepts Medicare Assignment

90 LIBBEY PKWY, WEYMOUTH, MA 02189(781) 335-3900(781) 340-3782 Get Directions Write a Review

NPPES record last updated: August 2, 2010. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Alan E Geller M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALAN E GELLER M.D. (NPI 1629040282) is an individual neurodevelopmental disabilities provider in Weymouth, Massachusetts, licensed in Massachusetts (35050) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and is a graduate of Tufts University School Of Medicine (1971).

NPPES Registry Identity

NPI1629040282

Entity TypeIndividualMale

Primary Taxonomy2084P0005X

Provider Legal NameALAN E GELLERCredential: M.D.

Location Address90 LIBBEY PKWYWeymouth, MA 02189-3100

Mailing Address90 Libbey PkwyWeymouth, MA 02189-3100 · (781) 335-3900 · Fax (781) 340-3782

Phone(781) 335-3900

Fax(781) 340-3782

Sole ProprietorYes

Medical School CMSTufts University School Of MedicineGraduated 1971

Enumeration DateFebruary 7, 2006

Last NPPES UpdateAugust 2, 2010

✔ NPI 1629040282 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · Neurodevelopmental DisabilitiesAllopathic & Osteopathic Physicians

Taxonomy Code2084P0005X

License✔ Licensed in MA · 35050

Definition

A neurologist who specializes in the treatment of individuals with developmental delays and learning disorders associated with cerebral palsy, spina bifida, autism, and other chronic neurologic conditions.

90 LIBBEY PKWY, Weymouth, MA 02189

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Other Identifiers 2

Medicare UPINB75265MA

Medicare ID-Type UnspecifiedK08300MA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Taro Health.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

Alan E Geller M.d. 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.

PECOS PAC ID5799754792

PECOS Enrollment IDI20040927001000

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Alan Geller reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Harbor Medical Associates, Inc.

0.7 mi

Cardiovascular Disease

541 MAIN ST, SUITE 400
South Weymouth, MA 02190

Reassigned Medicare billing, Massachusetts enrollment
419 clinicians in this Medicare group

NPI 1124079561 (781) 952-1240

Brigham & Womens Physicians Organization Inc

13 mi

Internal Medicine

75 FRANCIS ST
Boston, MA 02115

Reassigned Medicare billing, Massachusetts enrollment
4,574 clinicians in this Medicare group

NPI 1033535497 (617) 732-5500

Mass General Brigham Medical Group Suburban Massachusetts Inc

18 mi

Family Medicine

2014 WASHINGTON STREET
Newton, MA 02462

Reassigned Medicare billing, Massachusetts enrollment
992 clinicians in this Medicare group

NPI 1538191218 (617) 243-6262

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 6

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

276 services200 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

74 services74 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

62 services59 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

36 services34 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

23 services23 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

13 services13 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Massachusetts General Hospital

Acute Care Hospitals · Boston, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220071

Location55 Fruit StreetBoston, MA 02114 · Suffolk County

Emergency services Birthing friendly

South Shore Hospital

Acute Care Hospitals · South Weymouth, MA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220100

Location55 Fogg RoadSouth Weymouth, MA 02190 · Norfolk County

Emergency services Birthing friendly

Brigham And Women's Hospital

Acute Care Hospitals · Boston, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220110

Location75 Francis StreetBoston, MA 02115 · Suffolk County

Emergency services Birthing friendly

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ALICIA VAN COTT NP

Nurse Practitioner (Adult Health)

90 LIBBEY PKWY, SUITE 200
WEYMOUTH, MA 02189

Norfolk County (781) 335-9700

DR. SVETA SHAH OZA M.D.

Internal Medicine (Gastroenterology)

90 LIBBEY PKWY
WEYMOUTH, MA 02189

Norfolk County (781) 331-2922

MRS. DONNA M TOCCI PA

Physician Assistant

90 LIBBEY PKWY
WEYMOUTH, MA 02189

Norfolk County (339) 201-4120

DR. TIMOTHY V. JOHNSON D.O.

Obstetrics & Gynecology

90 LIBBEY PKWY
WEYMOUTH, MA 02189

Norfolk County (339) 201-4120

ELIZABETH LOPES-COSTA NP

Nurse Practitioner (Acute Care)

90 LIBBEY PKWY
WEYMOUTH, MA 02189

Norfolk County (401) 559-1058

LARRY MARKOWITZ M.D.

Psychiatry & Neurology (Neurology)

90 LIBBEY PKWY, SUITE 102
WEYMOUTH, MA 02189

Norfolk County (781) 335-3900

SOUTH COAST DERMATOLOGY LLC

Specialist

90 LIBBEY PKWY, SUITE 200
WEYMOUTH, MA 02189

Norfolk County (781) 335-9700

MRS. TERESA DEGIACOMO M.D.

Dermatology

90 LIBBEY PKWY, SUITE 200
WEYMOUTH, MA 02189

Norfolk County (781) 335-9700

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 Alan Geller's NPI number?

The NPI number for Alan Geller is 1629040282. It was assigned to this individual provider in the NPPES registry on February 7, 2006.

Where is Alan Geller located?

Alan Geller practices at 90 Libbey Pkwy, Weymouth, MA 02189. The listed phone number is (781) 335-3900.

What is Alan Geller's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurodevelopmental Disabilities, with taxonomy code 2084P0005X.

Is Alan Geller enrolled in Medicare?

Yes. Alan Geller 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 Alan Geller's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alan Geller reassigns Medicare benefits to 3 organizations: Harbor Medical Associates, Inc. (South Weymouth, MA), Brigham & Womens Physicians Organization Inc (Boston, MA) and Mass General Brigham Medical Group Suburban Massachusetts Inc (Newton, MA). 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 Alan Geller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alan Geller accept?

Health plans from Taro Health list Alan Geller 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.

Is Alan Geller affiliated with any hospitals?

According to CMS data, Alan Geller is affiliated with Massachusetts General Hospital, South Shore Hospital and Brigham And Women's Hospital.

When was this NPI record last updated?

The NPPES record for Alan Geller was last updated on August 2, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.