NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1447295571 M.D.
Verify on CMS → Frederick Kaplan, M.D.
Internal Medicine Physician in Plainview, 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 172,737 in Internal Medicine 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
8K
Medicare Part D claims · 912 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
CMS neutral threshold · no category scores published
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Frederick Kaplan, M.D. carries the neutral CMS MIPS final score of 75/100, assigned where no category was scored - and filed 7,785 Medicare Part D claims in 2023.
- 75/100
- CMS neutral score · not measured
- 8K
- Part D claims, 2023
- 91%
- 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.
CMS NPPES provider registry desk
NPI 1447295571 · Internal Medicine Physician
NPI-10 · ENUM-LEGACY · TAX-MEGA · MIPS-NEUTRAL · RX-MID · BOOK-MID · PHOTO-ENUM
- NPI-10 1447295571
- ENUM-LEGACY 2006
- TAX-MEGA 173K Internal Medicine
- MIPS-NEUTRAL 75/100
- RX-MID 7,785
- BOOK-MID 13,660 in New York
- PHOTO-ENUM Arzu Ilercil · 2006
Frederick Kaplan, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
7,785 ≥ 97th percentile 97% of 1,370,886 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 · 2023
✓
Board certification likely (heuristic, not verified)
Frederick Kaplan, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Frederick Kaplan, M.D.?
CMS neutral score, not measuredPrimary specialty
Internal Medicine Physician
Medicare Part D claims
7,785 187% vs specialty avg
MIPS final score
75/100
Specialty distribution in New York
How Internal Medicine Physician compares to other specialties among New York providers
MIPS score not measured
CMS assigned a neutral 75/100 threshold
CMS did not publish any Quality, Cost, Promoting Interoperability, or Improvement Activities category score for this clinician. This administrative threshold is not comparable with the national average of clinicians whose MIPS score was measured.
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 | 1447295571 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/20/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
CMS neutral threshold · not measured
Reporting: Group practice
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 Frederick Kaplan, M.D.. To verify Frederick Kaplan, 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 · Generic-heavy
Frederick Kaplan, M.D. - brand share 9.0%
Internal Medicine Physician average
9% brand-name claims vs 91% generic, on 7,785 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.
7,785
Total Claims
$437K
Total Drug Cost
912
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 18,195
- Total Day Supply
- 529,284
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $284K
- Generic Drug Cost
- $151K
- Opioid Claims
- 14 (0.2% rate)
- Antibiotic Claims
- 548
Patient Demographics
- Average Patient Age
- 77.3 years
- Avg HCC Risk Score
- 1.00
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 21, 65-74: 341, 75-84: 360, 85+: 190
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Frederick Kaplan, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levothyroxine Sodium
Levothyroxine Sodium
551 claims
- Atorvastatin Calcium
Atorvastatin Calcium
416 claims
- Amlodipine Besylate
Amlodipine Besylate
401 claims
- Zolpidem Tartrate
Zolpidem Tartrate
292 claims
- Metoprolol Succinate
Metoprolol Succinate
285 claims
- Losartan Potassium 213
Losartan Potassium
213 claims
- Simvastatin 208
Simvastatin
208 claims
- Metformin Hcl 179
Metformin Hcl
179 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 551 |
| Atorvastatin Calcium | 416 |
| Amlodipine Besylate | 401 |
| Zolpidem Tartrate | 292 |
| Metoprolol Succinate | 285 |
| Losartan Potassium | 213 |
| Simvastatin | 208 |
| Metformin Hcl | 179 |
| Omeprazole | 172 |
| Enalapril Maleate | 171 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Frederick Kaplan, M.D. fits within the Internal Medicine Physician landscape nationally.
172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Frederick Kaplan, M.D.'s 7,785 claims are above the specialty average of 2,716.
Nationwide Internal Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Kaplan, both outside New York so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (75 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Internal Medicine Physician Providers in New York
Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as Kaplan.
One of 13,660 Internal Medicine Physician providers enrolled in New York, 5 are shown here.
Dr. Deborah Aanonsen
D.O.
Staten Island, NY
Dr. Nivedita Aanur
M.D.
New York, NY
Dr. Jay Aaron
MD
Great Neck, NY
Dr. Justin Aaron
MD
New York, NY
Ahmad Abadi
Poughkeepsie, NY
Compare Internal Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Frederick Kaplan, M.D.'s specialty? ▼
Frederick Kaplan, M.D. specializes in Internal Medicine Physician and practices in Plainview, New York. Credentials: M.D..
How much does Frederick Kaplan, M.D. prescribe under Medicare Part D? ▼
In 2023, Frederick Kaplan, M.D. wrote 7,785 Medicare Part D claims totaling $437K in drug costs for 912 beneficiaries.
What is Frederick Kaplan, M.D.'s Medicare quality score? ▼
Frederick Kaplan, M.D. has a CMS MIPS Final Score of 75/100. CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score for this clinician, so the final score is the neutral performance threshold CMS assigns rather than a measured result. The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Frederick Kaplan, M.D. located? ▼
Frederick Kaplan, M.D. is located at 750 OLD COUNTRY RD, Plainview, NY, 11803. Phone: (516) 937-6620.
What is Frederick Kaplan, M.D.'s NPI number? ▼
Frederick Kaplan, M.D.'s National Provider Identifier (NPI) is 1447295571, issued on 06/20/2006.
Does Frederick Kaplan, M.D. prescribe more brand-name or generic drugs? ▼
Frederick Kaplan, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $284K in brand drug costs.
Does Frederick Kaplan, M.D. prescribe opioids? ▼
Yes, Frederick Kaplan, M.D. had 14 opioid claims in 2023 with an opioid prescribing rate of 0.2%.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Frederick Kaplan, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Frederick Kaplan, M.D.'s most frequently prescribed drugs include Levothyroxine Sodium, Atorvastatin Calcium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Frederick Kaplan, M.D. accept Medicare? ▼
Frederick Kaplan, M.D. appears in CMS Medicare data with 7,785 Part D claims and 912 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Frederick Kaplan, M.D.'s credentials? ▼
Frederick Kaplan, M.D.'s NPI is 1447295571 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.