2026 NPPES data Neurodevelopmental Disabilities Physician NPI 1629040282 M.D.
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ALAN GELLER, M.D.

Neurodevelopmental Disabilities Physician in WEYMOUTH, Massachusetts. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
1K
Medicare Part D claims · 277 beneficiaries · Neurodevelopmental Disabilities Physician avg: 1K

What the federal data shows

ALAN GELLER, M.D. filed 1,081 Medicare Part D claims in 2023 as a Neurodevelopmental Disabilities Physician in WEYMOUTH, Massachusetts.

1K
Part D claims, 2023
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

ALAN GELLER, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

1,081 Top 24% higher than 76% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). This entry sits in this band. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

ALAN GELLER, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about ALAN GELLER, M.D.?

Quality data not reported

NPI registry status

Active

Issued 02/07/2006

NPI 1629040282

Primary specialty

Neurodevelopmental Disabilities Physician

Rare

57 US NPIs in this specialty

Medicare Part D claims

1,081 13% vs specialty avg

2023 prescription claims

Specialty avg: 1,241

Specialty distribution in Massachusetts

How Neurodevelopmental Disabilities Physician compares to other specialties among Massachusetts providers

Massachusetts providers

Neurodevelopmental Disabilities Physician share within Massachusetts

1. Neurodevelopmental Disabilities Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Neurodevelopmental Disabilities Physician share within Massachusetts

Specialty board-certification context

Estimated specialty board-certified rate — Neurodevelopmental Disabilities Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Neurodevelopmental Disabilities Physician ABMS/AOA estimate

Est. board-certified rate (Neurodevelopmental Disabilities Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Neurodevelopmental Disabilities Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

ALAN GELLER, M.D. appears in the CMS NPPES registry as a Neurodevelopmental Disabilities Physician provider holding M.D. credentials at 90 LIBBEY PKWY, WEYMOUTH, MA, 02189, with a listed phone of (781) 335-3900. NPI 1629040282 was issued on 02/07/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GELLER most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,081 prescription claims written by this provider, covering 277 Medicare beneficiaries and totaling roughly $143K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Neurodevelopmental Disabilities Physician is a narrow specialty nationwide, with 57 enrolled providers across 26 states and an average of 1,241 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

90 LIBBEY PKWY
WEYMOUTH, MA 02189

Provider Details

NPI 1629040282
Specialty Neurodevelopmental Disabilities Physician
Credentials M.D.
Gender Male
NPI Issued 02/07/2006

Hospital and facility affiliations

Facilities where ALAN GELLER, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

BRIGHAM AND WOMENS PHYSICIANS ORGANIZATION INC
BOSTON, MA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — Massachusetts BORIM 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~38K Massachusetts medical licensees in 2023 — they are NOT specific to ALAN GELLER, M.D.. To verify ALAN GELLER, M.D.'s current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases

BORIM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,081
Total Claims
$143K
Total Drug Cost
277
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,243
Total Day Supply
66,370
Generic Drug Cost
$48K

Patient Demographics

Average Patient Age
76.1 years
Avg HCC Risk Score
1.25
Gender Split
61% female / 39% male
Age Distribution
<65: 18, 65-74: 89, 75-84: 130, 85+: 40

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What ALAN GELLER, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Donepezil Hcl
138
Gabapentin
103
Memantine Hcl
63
Levetiracetam
59
Fluoxetine Hcl
48
Carbidopa-Levodopa
Carbidopa/Levodopa
47
Olanzapine
46
Clonazepam
32
Carbamazepine Er
Carbamazepine
24
Primidone
24

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Neurodevelopmental Disabilities Physician Overview

How ALAN GELLER, M.D. fits within the Neurodevelopmental Disabilities Physician landscape nationally.

57
Neurodevelopmental Disabilities Physician Providers in US
26
States with Neurodevelopmental Disabilities Physician
1,241
Avg Claims per Provider

ALAN GELLER, M.D.'s 1,081 claims are below the specialty average of 1,241.

Nearby Neurodevelopmental Disabilities Physician Providers in Massachusetts

Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as GELLER.

Compare Neurodevelopmental Disabilities Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ALAN GELLER, M.D.'s specialty?
ALAN GELLER, M.D. specializes in Neurodevelopmental Disabilities Physician and practices in WEYMOUTH, Massachusetts. Credentials: M.D..
How much does ALAN GELLER, M.D. prescribe under Medicare Part D?
In 2023, ALAN GELLER, M.D. wrote 1,081 Medicare Part D claims totaling $143K in drug costs for 277 beneficiaries.
Where is ALAN GELLER, M.D. located?
ALAN GELLER, M.D. is located at 90 LIBBEY PKWY, WEYMOUTH, MA, 02189. Phone: (781) 335-3900.
What is ALAN GELLER, M.D.'s NPI number?
ALAN GELLER, M.D.'s National Provider Identifier (NPI) is 1629040282, issued on 02/07/2006.
How many Neurodevelopmental Disabilities Physician providers are there in the US?
There are 57 Neurodevelopmental Disabilities Physician providers across 26 states in the US. The average Neurodevelopmental Disabilities Physician provider writes 1,241 Medicare Part D claims per year.
What drugs does ALAN GELLER, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ALAN GELLER, M.D.'s most frequently prescribed drugs include Donepezil Hcl, Gabapentin, Memantine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ALAN GELLER, M.D. accept Medicare?
ALAN GELLER, M.D. appears in CMS Medicare data with 1,081 Part D claims and 277 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ALAN GELLER, M.D.'s credentials?
ALAN GELLER, M.D.'s NPI is 1629040282 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology