NPI registry status
Active
2026 NPPES data Cardiovascular Disease Physician NPI 1689765901 M.D.
Verify on CMS → Byagari Narayana, M.D.
Cardiovascular Disease 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 24,810 in Cardiovascular Disease 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
15K
Medicare Part D claims · 529 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
78%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Byagari Narayana, M.D. filed 14,751 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in Brooklyn, New York, prescribing 78% generic.
- 15K
- Part D claims, 2023
- 78%
- generic prescribing
- 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.
Byagari Narayana, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
14,751 Top 2% higher than 98% 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 certification likely (heuristic, not verified)
Byagari Narayana, 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 Byagari Narayana, M.D.?
Quality data not reportedPrimary specialty
Cardiovascular Disease Physician
Medicare Part D claims
14,751 386% vs specialty avg
Specialty distribution in New York
How Cardiovascular Disease 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 Cardiovascular Disease 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).
Byagari Narayana, M.D. appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding M.D. credentials at 124 WYCKOFF AVE, Brooklyn, NY, 11237, with a listed phone of (718) 417-1456. NPI 1689765901 was issued on 09/28/2006.
Medicare Part D records for calendar year 2023 show 14,751 prescription claims written by this provider, covering 529 Medicare beneficiaries and totaling roughly $1.8 million in drug spend, split 17% brand-name and 78% generic by claim count, with an opioid prescribing rate of 0.1%.
Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,810 enrolled providers across 54 states and an average of 3,033 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 | 1689765901 |
|---|---|
| Specialty | Cardiovascular Disease Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 09/28/2006 |
Hospital and facility affiliations
Facilities where Byagari Narayana, 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.
Wyckoff Professional Medical Services PC
Brooklyn, NY
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 - 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 Byagari Narayana, M.D.. To verify Byagari Narayana, 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
Byagari Narayana, M.D. - brand share 17.0%
Cardiovascular Disease Physician average
17% brand-name claims vs 78% generic, on 14,751 2023 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 2023.
14,751
Total Claims
$1.8M
Total Drug Cost
529
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 29,325
- Total Day Supply
- 854,208
- Brand vs Generic
- 17% brand / 78% generic
- Brand Drug Cost
- $1.6M
- Generic Drug Cost
- $227K
- Opioid Claims
- 13 (0.1% rate)
- Antibiotic Claims
- 301
Patient Demographics
- Average Patient Age
- 73.0 years
- Avg HCC Risk Score
- 1.30
- Gender Split
- 60% female / 40% male
- Age Distribution
- <65: 73, 65-74: 224, 75-84: 184, 85+: 48
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Byagari Narayana, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Diclofenac Sodium
Diclofenac Sodium
768 claims
- Atorvastatin Calcium
Atorvastatin Calcium
701 claims
- Losartan Potassium
Losartan Potassium
643 claims
- Metformin Hcl
Metformin Hcl
558 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
537 claims
- Amlodipine Besylate
Amlodipine Besylate
511 claims
- Simvastatin
Simvastatin
493 claims
- Omeprazole
Omeprazole
335 claims
| Drug | Claims |
|---|---|
| Diclofenac Sodium | 768 |
| Atorvastatin Calcium | 701 |
| Losartan Potassium | 643 |
| Metformin Hcl | 558 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 537 |
| Amlodipine Besylate | 511 |
| Simvastatin | 493 |
| Omeprazole | 335 |
| Januvia Sitagliptin Phosphate | 303 |
| Meclizine Hcl | 298 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Cardiovascular Disease Physician Overview
How Byagari Narayana, M.D. fits within the Cardiovascular Disease Physician landscape nationally.
24,810
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider
Byagari Narayana, M.D.'s 14,751 claims are above the specialty average of 3,033.
Nearby Cardiovascular Disease Physician Providers in New York
Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as Narayana.
Dr. Michael Aaron
MD
West Islip, NY
Dr. Vivian Abascal
MD
Richmond Hill, NY
Dr. Joseph Abboud
MD
Brooklyn, NY
Dr. Mohamed Abdel-Aal Ahmed
M.D.
Buffalo, NY
Dr. Khaled Abdulla
M.D.
Rochester, NY
Compare Cardiovascular Disease 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 York medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Cardiovascular Disease 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 Byagari Narayana, M.D.'s specialty? ▼
Byagari Narayana, M.D. specializes in Cardiovascular Disease Physician and practices in Brooklyn, New York. Credentials: M.D..
How much does Byagari Narayana, M.D. prescribe under Medicare Part D? ▼
In 2023, Byagari Narayana, M.D. wrote 14,751 Medicare Part D claims totaling $1.8M in drug costs for 529 beneficiaries.
Where is Byagari Narayana, M.D. located? ▼
Byagari Narayana, M.D. is located at 124 WYCKOFF AVE, Brooklyn, NY, 11237. Phone: (718) 417-1456.
What is Byagari Narayana, M.D.'s NPI number? ▼
Byagari Narayana, M.D.'s National Provider Identifier (NPI) is 1689765901, issued on 09/28/2006.
Does Byagari Narayana, M.D. prescribe more brand-name or generic drugs? ▼
Byagari Narayana, M.D.'s prescribing is 17% brand-name and 78% generic drugs by claim count, with $1.6M in brand drug costs.
Does Byagari Narayana, M.D. prescribe opioids? ▼
Yes, Byagari Narayana, M.D. had 13 opioid claims in 2023 with an opioid prescribing rate of 0.1%.
How many Cardiovascular Disease Physician providers are there in the US? ▼
There are 24,810 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
What drugs does Byagari Narayana, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Byagari Narayana, M.D.'s most frequently prescribed drugs include Diclofenac Sodium, Atorvastatin Calcium, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Byagari Narayana, M.D. accept Medicare? ▼
Byagari Narayana, M.D. appears in CMS Medicare data with 14,751 Part D claims and 529 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Byagari Narayana, M.D.'s credentials? ▼
Byagari Narayana, M.D.'s NPI is 1689765901 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
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.