NPI registry status
Active
2026 NPPES data Cardiology Pharmacist NPI 1801518287
Verify on CMS → Christine Ko
Cardiology Pharmacist in Boston, Massachusetts.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 61 in Cardiology Pharmacist, 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
140
Medicare Part D claims · 32 beneficiaries · Cardiology Pharmacist avg: 232
Generic prescribing
51%
generic claims · 49% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Christine Ko filed 140 Medicare Part D claims in 2023 as a Cardiology Pharmacist in Boston, Massachusetts, prescribing 51% generic.
- 140
- Part D claims, 2023
- 51%
- generic prescribing
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.
Christine Ko's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
140 35th percentile higher than 35% 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
What does the federal data show about Christine Ko?
Quality data not reportedPrimary specialty
Cardiology Pharmacist
Medicare Part D claims
140 40% vs specialty avg
Specialty distribution in Massachusetts
How Cardiology Pharmacist compares to other specialties among Massachusetts 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 Cardiology Pharmacist. 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).
Christine Ko appears in the CMS NPPES registry as a Cardiology Pharmacist provider at 55 FRUIT ST, Boston, MA, 02114, with a listed phone of (617) 643-3694. NPI 1801518287 was issued on 09/13/2022.
Medicare Part D records for calendar year 2023 show 140 prescription claims written by this provider, covering 32 Medicare beneficiaries and totaling roughly $52K in drug spend, split 49% brand-name and 51% generic by claim count.
Cardiology Pharmacist is a narrow specialty nationwide, with 61 enrolled providers across 27 states and an average of 232 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 | 1801518287 |
|---|---|
| Specialty | Cardiology Pharmacist |
| Gender | Female |
| NPI Issued | 09/13/2022 |
License & disciplinary context - Massachusetts BORIM 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 ~38K Massachusetts medical licensees in 2023 - they are NOT specific to Christine Ko. To verify Christine Ko's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases
BORIM 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 Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Above average
Christine Ko - brand share 49.0%
Cardiology Pharmacist average
49% brand-name claims vs 51% generic, on 140 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.
140
Total Claims
$52K
Total Drug Cost
32
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 271
- Total Day Supply
- 8,042
- Brand vs Generic
- 49% brand / 51% generic
- Brand Drug Cost
- $50K
- Generic Drug Cost
- $2K
Patient Demographics
- Average Patient Age
- 77.4 years
- Avg HCC Risk Score
- 1.56
- Gender Split
- 41% female / 59% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Christine Ko prescribes most
Top Medicare Part D drugs by claim count, 2023
- Entresto
Entresto
32 claims
- Spironolactone
Spironolactone
27 claims
- Jardiance
Jardiance
20 claims
- Amlodipine Besylate
Amlodipine Besylate
14 claims
| Drug | Claims |
|---|---|
| Entresto Sacubitril/Valsartan | 32 |
| Spironolactone | 27 |
| Jardiance Empagliflozin | 20 |
| Amlodipine Besylate | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Cardiology Pharmacist Overview
How Christine Ko fits within the Cardiology Pharmacist landscape nationally.
61
Cardiology Pharmacist Providers in US
27
States with Cardiology Pharmacist
232
Avg Claims per Provider
Christine Ko's 140 claims are below the specialty average of 232.
Nearby Cardiology Pharmacist Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Ko.
Dr. Sarah Beargie
PHARMD
Boston, MA
Dr. Aidan Fischer
PHARMD
Boston, MA
Dr. Brooke Harlow
PHARMD
Cambridge, MA
Dr. Sonia Kothari
PHARMD
Boston, MA
Dr. Kelly Nguyen
PHARMD
Boston, MA
Compare Cardiology Pharmacist 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 Massachusetts medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Cardiology Pharmacist 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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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Virtual care options and coverage in 2026
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Frequently Asked Questions
What is Christine Ko's specialty? ▼
Christine Ko specializes in Cardiology Pharmacist and practices in Boston, Massachusetts.
How much does Christine Ko prescribe under Medicare Part D? ▼
In 2023, Christine Ko wrote 140 Medicare Part D claims totaling $52K in drug costs for 32 beneficiaries.
Where is Christine Ko located? ▼
Christine Ko is located at 55 FRUIT ST, Boston, MA, 02114. Phone: (617) 643-3694.
What is Christine Ko's NPI number? ▼
Christine Ko's National Provider Identifier (NPI) is 1801518287, issued on 09/13/2022.
Does Christine Ko prescribe more brand-name or generic drugs? ▼
Christine Ko's prescribing is 49% brand-name and 51% generic drugs by claim count, with $50K in brand drug costs.
How many Cardiology Pharmacist providers are there in the US? ▼
There are 61 Cardiology Pharmacist providers across 27 states in the US. The average Cardiology Pharmacist provider writes 232 Medicare Part D claims per year.
What drugs does Christine Ko prescribe most often? ▼
Based on 2023 Medicare Part D data, Christine Ko's most frequently prescribed drugs include Entresto, Spironolactone, Jardiance. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Christine Ko accept Medicare? ▼
Christine Ko appears in CMS Medicare data with 140 Part D claims and 32 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Christine Ko's credentials? ▼
Christine Ko's NPI is 1801518287. 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.