NPI registry status
Active
2026 NPPES data Specialist NPI 1750344289 M.D.
Verify on CMS → C Mackenzie, M.D.
Specialist in New York, 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 69,567 in Specialist, 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
4K
Medicare Part D claims · 424 beneficiaries · Specialist avg: 2K
MIPS score
75/100
CMS neutral threshold · no category scores published
Industry payments
$120.32
1 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
C Mackenzie, M.D. carries the neutral CMS MIPS final score of 75/100, assigned where no category was scored - and filed 3,866 Medicare Part D claims in 2024.
- 75/100
- CMS neutral score · not measured
- 4K
- Part D claims, 2024
- $120.32
- industry payments (Sunshine Act)
- ≥91st
- 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 C Mackenzie, 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 1750344289), first enumerated 04/07/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 3,866 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
CMS assigned a neutral MIPS final score of 75/100 where no performance category was scored — not a measured quality rank.
Source: CMS Quality Payment Program
- Reported
Hospital affiliations
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$120.32 in reported industry payments (1 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 C Mackenzie, 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 1750344289 · Specialist
NPI-10 · ENUM-LEGACY · TAX-MEGA · MIPS-NEUTRAL · RX-MID · BOOK-MID · PHOTO-ENUM
- NPI-10 1750344289
- ENUM-LEGACY 2006
- TAX-MEGA 70K Specialist
- MIPS-NEUTRAL 75/100
- RX-MID 3,866
- BOOK-MID 23,149 in New York
- PHOTO-ENUM Lawrence Reader, M.D. · 2006
C Mackenzie, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
3,866 ≥ 91st percentile 91% 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
What does the federal data show about C Mackenzie, M.D.?
CMS neutral score, not measuredPrimary specialty
Specialist
Medicare Part D claims
3,866 154% vs specialty avg
MIPS final score
75/100
Specialty distribution in New York
How Specialist 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 | 1750344289 |
|---|---|
| Specialty | Specialist |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 04/07/2006 |
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
Hospital and facility affiliations
Facilities where C Mackenzie, 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.
New York Society For The Relief OF Ruptured And Crippled Maintaining
New York, NY
Select PT, OT And Slp Rehabilitation NY, PLLC
Hudson, 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).
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 C Mackenzie, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$120
Largest payer
Heron Therapeutics, 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 C Mackenzie, M.D.. To verify C Mackenzie, 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
3,866
Total Claims
$1.2M
Total Drug Cost
424
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 7,805.233
- Total Day Supply
- 226,169
- Generic Drug Cost
- $54K
- Opioid Claims
- 51 (1.3% rate)
- Antibiotic Claims
- 100
Patient Demographics
- Average Patient Age
- 77.8 years
- Avg HCC Risk Score
- 0.99
- Gender Split
- 62% female / 38% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What C Mackenzie, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Atorvastatin Calcium
Atorvastatin Calcium
308 claims
- Amlodipine Besylate
Amlodipine Besylate
177 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
166 claims
- Levothyroxine Sodium
Levothyroxine Sodium
143 claims
- Meloxicam
Meloxicam
137 claims
- Prednisone 113
Prednisone
113 claims
- Methotrexate 111
Methotrexate
111 claims
- Escitalopram Oxalate 102
Escitalopram Oxalate
102 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 308 |
| Amlodipine Besylate | 177 |
| Rosuvastatin Calcium | 166 |
| Levothyroxine Sodium | 143 |
| Meloxicam | 137 |
| Prednisone | 113 |
| Methotrexate Methotrexate Sodium | 111 |
| Escitalopram Oxalate | 102 |
| Losartan Potassium | 98 |
| Methylprednisolone | 87 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Specialist Overview
How C Mackenzie, M.D. fits within the Specialist landscape nationally.
69,567
Specialist Providers in US
55
States with Specialist
1,524
Avg Claims per Provider
C Mackenzie, M.D.'s 3,866 claims are above the specialty average of 1,524.
Nationwide Specialist peers with similar MIPS or enrollment year
Two federal-record peer sets for Mackenzie, 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 Specialist Providers in New York
Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as Mackenzie.
One of 23,149 Specialist providers enrolled in New York, 5 are shown here.
Caroline A Borum
Oswego, NY
Kerry Aaron
Fairport, NY
Bracha Aaronson
SPECIAL EDUCATOR
Brooklyn, NY
Gayle Aaronson
SPECIALIST
New York, NY
Kerly Abad Avila
New York, NY
Compare Specialist nationally: see state-by-state distribution →
Frequently Asked Questions
What is C Mackenzie, M.D.'s specialty? ▼
C Mackenzie, M.D. specializes in Specialist and practices in New York, New York. Credentials: M.D..
How much does C Mackenzie, M.D. prescribe under Medicare Part D? ▼
In 2024, C Mackenzie, M.D. wrote 3,866 Medicare Part D claims totaling $1.2M in drug costs for 424 beneficiaries.
What is C Mackenzie, M.D.'s Medicare quality score? ▼
C Mackenzie, 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 C Mackenzie, M.D. located? ▼
C Mackenzie, M.D. is located at 535 E 70TH ST, New York, NY, 10021. Phone: (212) 606-1669.
What is C Mackenzie, M.D.'s NPI number? ▼
C Mackenzie, M.D.'s National Provider Identifier (NPI) is 1750344289, issued on 04/07/2006.
Does C Mackenzie, M.D. prescribe opioids? ▼
Yes, C Mackenzie, M.D. had 51 opioid claims in 2024 with an opioid prescribing rate of 1.3%.
How many Specialist providers are there in the US? ▼
There are 69,567 Specialist providers across 55 states in the US. The average Specialist provider writes 1,524 Medicare Part D claims per year.
What drugs does C Mackenzie, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, C Mackenzie, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Rosuvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does C Mackenzie, M.D. accept Medicare? ▼
C Mackenzie, M.D. appears in CMS Medicare data with 3,866 Part D claims and 424 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify C Mackenzie, M.D.'s credentials? ▼
C Mackenzie, M.D.'s NPI is 1750344289 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.
- 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 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.