NPI registry status
Active
2026 NPPES data Addiction Medicine (Psychiatry & Neurology) Physician NPI 1417070442 M.D.
Verify on CMS → Alejo Parellada, M.D.
Addiction Medicine (Psychiatry & Neurology) Physician in Brooklyn, New York.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 648 in Addiction Medicine (Psychiatry & Neurology) Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
2K
Medicare Part D claims · 72 beneficiaries · Addiction Medicine (Psychiatry & Neurology) Physician avg: 1K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$4.6K
173 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Alejo Parellada, M.D. filed 1,877 Medicare Part D claims in 2024 as an Addiction Medicine (Psychiatry & Neurology) Physician in Brooklyn, New York, prescribing 88% generic.
- 2K
- Part D claims, 2024
- 88%
- generic prescribing
- $4.6K
- industry payments (Sunshine Act)
- ≥83rd
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Alejo Parellada, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1417070442), first enumerated 04/06/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,877 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Reported
Industry payment transparency
$4.6K in reported industry payments (173 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
New York statewide board action statistics are published annually — these figures describe aggregate state activity, not Alejo Parellada, M.D.'s individual license status. Verify directly with the state medical board.
Source: NYSBPMC annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1417070442 · Addiction Medicine (Psychiatry & Neurology) Physician
NPI-10 · ENUM-MID · TAX-NARROW · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1417070442
- ENUM-MID 2007
- TAX-NARROW 648
- RX-MID 1,877
- BOOK-THIN 60 in New York
- PHOTO-ENUM Mark Green · 2007
Alejo Parellada, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,877 ≥ 83rd percentile 83% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
Board-eligible specialty (heuristic, not verified)
Alejo Parellada, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Alejo Parellada, M.D.?
Quality data not reportedPrimary specialty
Addiction Medicine (Psychiatry & Neurology) Physician
Medicare Part D claims
1,877 81% vs specialty avg
Specialty distribution in New York
How Addiction Medicine (Psychiatry & Neurology) Physician compares to other specialties among New York providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Addiction Medicine (Psychiatry & Neurology) Physician. Verify directly:
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1417070442 |
|---|---|
| Specialty | Addiction Medicine (Psychiatry & Neurology) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 04/06/2007 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Alejo Parellada, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$4.6K
Largest payer
Teva Pharmaceuticals USA, Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - New York NYSBPMC 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 ~100K New York medical licensees in 2023 - they are NOT specific to Alejo Parellada, M.D.. To verify Alejo Parellada, M.D.'s current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases
NYSBPMC 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 New York disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Alejo Parellada, M.D. - brand share 12.0%
Addiction Medicine (Psychiatry & Neurology) Physician average
12% brand-name claims vs 88% generic, on 1,877 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
1,877
Total Claims
$318K
Total Drug Cost
72
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,993.667
- Total Day Supply
- 56,370
- Brand vs Generic
- 12% brand / 88% generic
- Brand Drug Cost
- $281K
- Generic Drug Cost
- $38K
Patient Demographics
- Average Patient Age
- 62.1 years
- Avg HCC Risk Score
- 1.27
- Gender Split
- 47% female / 53% male
- Age Distribution
- <65: 33, 65-74: 34, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Alejo Parellada, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Clonazepam
Clonazepam
304 claims
- Alprazolam
Alprazolam
180 claims
- Buprenorphine-Nalo…
Buprenorphine-Naloxone
142 claims
- Zolpidem Tartrate
Zolpidem Tartrate
133 claims
- Fluoxetine Hcl 116
Fluoxetine Hcl
116 claims
- Quetiapine Fumarate 104
Quetiapine Fumarate
104 claims
- Gabapentin 85
Gabapentin
85 claims
- Mirtazapine 72
Mirtazapine
72 claims
| Drug | Claims |
|---|---|
| Clonazepam | 304 |
| Alprazolam | 180 |
| Buprenorphine-Naloxone Buprenorphine Hcl/Naloxone Hcl | 142 |
| Zolpidem Tartrate | 133 |
| Fluoxetine Hcl | 116 |
| Quetiapine Fumarate | 104 |
| Gabapentin | 85 |
| Mirtazapine | 72 |
| Bupropion Xl Bupropion Hcl | 68 |
| Dextroamphetamine-Amphetamine Dextroamphetamine/Amphetamine | 63 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Addiction Medicine (Psychiatry & Neurology) Physician in NY →
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Addiction Medicine (Psychiatry & Neurology) Physician Overview
How Alejo Parellada, M.D. fits within the Addiction Medicine (Psychiatry & Neurology) Physician landscape nationally.
648
Addiction Medicine (Psychiatry & Neurology) Physician Providers in US
49
States with Addiction Medicine (Psychiatry & Neurology) Physician
1,039
Avg Claims per Provider
Alejo Parellada, M.D.'s 1,877 claims are above the specialty average of 1,039.
Nationwide Addiction Medicine (Psychiatry & Neurology) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Parellada, both outside New York so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Addiction Medicine (Psychiatry & Neurology) Physician Providers in New York
Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as Parellada.
One of 60 Addiction Medicine (Psychiatry & Neurology) Physician providers enrolled in New York, 5 are shown here.
Frequently Asked Questions
What is Alejo Parellada, M.D.'s specialty? ▼
Alejo Parellada, M.D. specializes in Addiction Medicine (Psychiatry & Neurology) Physician and practices in Brooklyn, New York. Credentials: M.D..
How much does Alejo Parellada, M.D. prescribe under Medicare Part D? ▼
In 2024, Alejo Parellada, M.D. wrote 1,877 Medicare Part D claims totaling $318K in drug costs for 72 beneficiaries.
Where is Alejo Parellada, M.D. located? ▼
Alejo Parellada, M.D. is located at 634 BERGEN ST, Brooklyn, NY, 11238. Phone: (718) 638-5321.
What is Alejo Parellada, M.D.'s NPI number? ▼
Alejo Parellada, M.D.'s National Provider Identifier (NPI) is 1417070442, issued on 04/06/2007.
Does Alejo Parellada, M.D. prescribe more brand-name or generic drugs? ▼
Alejo Parellada, M.D.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $281K in brand drug costs.
How many Addiction Medicine (Psychiatry & Neurology) Physician providers are there in the US? ▼
There are 648 Addiction Medicine (Psychiatry & Neurology) Physician providers across 49 states in the US. The average Addiction Medicine (Psychiatry & Neurology) Physician provider writes 1,039 Medicare Part D claims per year.
What drugs does Alejo Parellada, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Alejo Parellada, M.D.'s most frequently prescribed drugs include Clonazepam, Alprazolam, Buprenorphine-Naloxone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Alejo Parellada, M.D. accept Medicare? ▼
Alejo Parellada, M.D. appears in CMS Medicare data with 1,877 Part D claims and 72 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Alejo Parellada, M.D.'s credentials? ▼
Alejo Parellada, M.D.'s NPI is 1417070442 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
View source datasets and methodology notes
- 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 (2024). 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.