NPI registry status
Active
2026 NPPES data Neurology Physician NPI 1841289634 M.D.
Verify on CMS → Lydia Shajenko, M.D.
Neurology Physician in Edgewater, New Jersey.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 19,885 in 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 · 205 beneficiaries · Neurology Physician avg: 1K
Industry payments
$5.1K
163 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Lydia Shajenko, M.D. filed 1,864 Medicare Part D claims in 2023 as a Neurology Physician in Edgewater, New Jersey.
- 2K
- Part D claims, 2023
- $5.1K
- industry payments (Sunshine Act)
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.
Lydia Shajenko, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,864 Top 17% higher than 83% of 1,370,886 prescribers
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-eligible specialty (heuristic, not verified)
Lydia Shajenko, 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 Lydia Shajenko, M.D.?
Quality data not reportedPrimary specialty
Neurology Physician
Medicare Part D claims
1,864 42% vs specialty avg
Specialty distribution in New Jersey
How Neurology Physician compares to other specialties among New Jersey 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 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).
Lydia Shajenko, M.D. appears in the CMS NPPES registry as a Neurology Physician provider holding M.D. credentials at 725 RIVER RD STE 55, Edgewater, NJ, 07020, with a listed phone of (646) 712-1635. NPI 1841289634 was issued on 10/14/2005.
Medicare Part D records for calendar year 2023 show 1,864 prescription claims written by this provider, covering 205 Medicare beneficiaries and totaling roughly $1.1 million in drug spend, with an opioid prescribing rate of 7.9%.
Neurology Physician is a mid-sized specialty nationwide, with 19,885 enrolled providers across 54 states and an average of 1,309 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
Provider Details
| NPI | 1841289634 |
|---|---|
| Specialty | Neurology Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 10/14/2005 |
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 Lydia Shajenko, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$5.1K
Largest payer
ABBVIE 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,864
Total Claims
$1.1M
Total Drug Cost
205
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,485
- Total Day Supply
- 72,760
- Generic Drug Cost
- $47K
- Opioid Claims
- 148 (7.9% rate)
- Antibiotic Claims
- 11
Patient Demographics
- Average Patient Age
- 71.0 years
- Avg HCC Risk Score
- 1.67
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 58, 65-74: 58, 75-84: 59, 85+: 30
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Lydia Shajenko, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Donepezil Hcl
Donepezil Hcl
219 claims
- Memantine Hcl
Memantine Hcl
102 claims
- Levetiracetam 85
Levetiracetam
85 claims
- Alprazolam 76
Alprazolam
76 claims
- Zolpidem Tartrate 61
Zolpidem Tartrate
61 claims
- Oxycodone-Acetamin… 53
Oxycodone-Acetaminophen
53 claims
- Meloxicam 45
Meloxicam
45 claims
- Ubrelvy 44
Ubrelvy
44 claims
| Drug | Claims |
|---|---|
| Donepezil Hcl | 219 |
| Memantine Hcl | 102 |
| Levetiracetam | 85 |
| Alprazolam | 76 |
| Zolpidem Tartrate | 61 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 53 |
| Meloxicam | 45 |
| Ubrelvy Ubrogepant | 44 |
| Meclizine Hcl | 43 |
| Duloxetine Hcl | 40 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Neurology Physician Overview
How Lydia Shajenko, M.D. fits within the Neurology Physician landscape nationally.
19,885
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider
Lydia Shajenko, M.D.'s 1,864 claims are above the specialty average of 1,309.
Nearby Neurology Physician Providers in New Jersey
Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as Shajenko.
Dr. S Abidi
MD
Maple Shade, NJ
Dr. Russell Abrams
M.D.
Cherry Hill, NJ
Dr. Osama Abu-Hadid
M.D.
Paramus, NJ
Dr. Shashank Agarwal
M.D
Livingston, NJ
Dr. Antwan Ahad
MD
Secaucus, NJ
Compare Neurology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the New Jersey medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Neurology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Lydia Shajenko, M.D.'s specialty? ▼
Lydia Shajenko, M.D. specializes in Neurology Physician and practices in Edgewater, New Jersey. Credentials: M.D..
How much does Lydia Shajenko, M.D. prescribe under Medicare Part D? ▼
In 2023, Lydia Shajenko, M.D. wrote 1,864 Medicare Part D claims totaling $1.1M in drug costs for 205 beneficiaries.
Where is Lydia Shajenko, M.D. located? ▼
Lydia Shajenko, M.D. is located at 725 RIVER RD STE 55, Edgewater, NJ, 07020. Phone: (646) 712-1635.
What is Lydia Shajenko, M.D.'s NPI number? ▼
Lydia Shajenko, M.D.'s National Provider Identifier (NPI) is 1841289634, issued on 10/14/2005.
Does Lydia Shajenko, M.D. prescribe opioids? ▼
Yes, Lydia Shajenko, M.D. had 148 opioid claims in 2023 with an opioid prescribing rate of 7.9%.
How many Neurology Physician providers are there in the US? ▼
There are 19,885 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does Lydia Shajenko, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Lydia Shajenko, M.D.'s most frequently prescribed drugs include Donepezil Hcl, Memantine Hcl, Levetiracetam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Lydia Shajenko, M.D. accept Medicare? ▼
Lydia Shajenko, M.D. appears in CMS Medicare data with 1,864 Part D claims and 205 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Lydia Shajenko, M.D.'s credentials? ▼
Lydia Shajenko, M.D.'s NPI is 1841289634 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 (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
Compiled from official public sources by the PlainDoctor editorial team.
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 May 2026.