NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1437174323 DO
Verify on CMS → Tina Ko, DO
Nephrology Physician in Pittsburgh, Pennsylvania.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 10,534 in Nephrology 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
1K
Medicare Part D claims · 161 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
93.8/100
▲ 11 pts above national avg 83.1 · Exceptional
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
Tina Ko, DO reported a CMS MIPS final score of 93.8/100 - above the 83.1 national average - and filed 1,053 Medicare Part D claims in 2023.
- 93.8/100
- MIPS score · +11 vs avg
- 1K
- Part D claims, 2023
- 84%
- 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.
Tina Ko, DO's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
94 Top 29% higher than 71% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Tina Ko, DO sits
This provider among nephrology physician peers
Across the 2,476 nephrology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Tina Ko, DO writes more Part D claims than 48% of them and scores higher on MIPS quality than 78% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one nephrology physician peer from a representative sample of 60; the gold marker is Tina Ko, DO. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Tina Ko, DO 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 Tina Ko, DO?
High performer (top quartile)Primary specialty
Nephrology Physician
Medicare Part D claims
1,053 28% vs specialty avg
MIPS final score
93.8/100 10.7 pts vs avg
Specialty distribution in Pennsylvania
How Nephrology Physician compares to other specialties among Pennsylvania providers
Medicare quality performance, MIPS
Tina Ko, DO's 2023 MIPS final score plotted against the Nephrology Physician national average
- MIPS Final Score
- 93.8/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Nephrology Physician) - 93.8/100 vs national avg 83.1
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).
Tina Ko, DO appears in the CMS NPPES registry as a Nephrology Physician provider holding DO credentials at 320 E NORTH AVE FL 4, Pittsburgh, PA, 15212, with a listed phone of (412) 359-3319. NPI 1437174323 was issued on 07/13/2006.
Medicare Part D records for calendar year 2023 show 1,053 prescription claims written by this provider, covering 161 Medicare beneficiaries and totaling roughly $155K in drug spend, split 16% brand-name and 84% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 93.8/100 for the 2023 performance year (Quality 85.1), compared with the national average of 83.1.
Nephrology Physician is a mid-sized specialty nationwide, with 10,534 enrolled providers across 55 states and an average of 1,454 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 | 1437174323 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | DO |
| Gender | Female |
| NPI Issued | 07/13/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
93.7848
Final Score
Avg: 83.1
85.0781
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
License & disciplinary context - Pennsylvania PA-BOM 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 ~45K Pennsylvania medical licensees in 2023 - they are NOT specific to Tina Ko, DO. To verify Tina Ko, DO's current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases
PA-BOM 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 Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Tina Ko, DO - brand share 16.0%
Nephrology Physician average
16% brand-name claims vs 84% generic, on 1,053 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.
1,053
Total Claims
$155K
Total Drug Cost
161
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,945
- Total Day Supply
- 57,308
- Brand vs Generic
- 16% brand / 84% generic
- Brand Drug Cost
- $132K
- Generic Drug Cost
- $23K
- Antibiotic Claims
- 11
Patient Demographics
- Average Patient Age
- 71.0 years
- Avg HCC Risk Score
- 2.62
- Gender Split
- 56% female / 44% male
- Age Distribution
- <65: 28, 65-74: 82, 75-84: 38, 85+: 13
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Tina Ko, DO prescribes most
Top Medicare Part D drugs by claim count, 2023
- Calcitriol
Calcitriol
162 claims
- Lisinopril
Lisinopril
72 claims
- Amlodipine Besylate
Amlodipine Besylate
67 claims
- Allopurinol 47
Allopurinol
47 claims
- Carvedilol 36
Carvedilol
36 claims
- Furosemide 36
Furosemide
36 claims
- Lokelma 31
Lokelma
31 claims
- Chlorthalidone 29
Chlorthalidone
29 claims
| Drug | Claims |
|---|---|
| Calcitriol | 162 |
| Lisinopril | 72 |
| Amlodipine Besylate | 67 |
| Allopurinol | 47 |
| Carvedilol | 36 |
| Furosemide | 36 |
| Lokelma Sodium Zirconium Cyclosilicate | 31 |
| Chlorthalidone | 29 |
| Omeprazole | 29 |
| Veltassa Patiromer Calcium Sorbitex | 29 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nephrology Physician Overview
How Tina Ko, DO fits within the Nephrology Physician landscape nationally.
10,534
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider
Tina Ko, DO's 1,053 claims are below the specialty average of 1,454.
Nearby Nephrology Physician Providers in Pennsylvania
Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as Ko.
Dr. Mohamed Anwar Abdus Samad
MD
York, PA
Dr. Samer Abou Chehade
M.D
Erie, PA
Blaise Abramovitz
Pittsburgh, PA
Dr. Parvaneh Abtahi
MD
Wyomissing, PA
Azza Abubaker
Philadelphia, PA
Compare Nephrology 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 Pennsylvania medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Nephrology 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 Tina Ko, DO's specialty? ▼
Tina Ko, DO specializes in Nephrology Physician and practices in Pittsburgh, Pennsylvania. Credentials: DO.
How much does Tina Ko, DO prescribe under Medicare Part D? ▼
In 2023, Tina Ko, DO wrote 1,053 Medicare Part D claims totaling $155K in drug costs for 161 beneficiaries.
What is Tina Ko, DO's Medicare quality score? ▼
Tina Ko, DO has a CMS MIPS Final Score of 93.8/100 (Quality: 85.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Tina Ko, DO located? ▼
Tina Ko, DO is located at 320 E NORTH AVE FL 4, Pittsburgh, PA, 15212. Phone: (412) 359-3319.
What is Tina Ko, DO's NPI number? ▼
Tina Ko, DO's National Provider Identifier (NPI) is 1437174323, issued on 07/13/2006.
Does Tina Ko, DO prescribe more brand-name or generic drugs? ▼
Tina Ko, DO's prescribing is 16% brand-name and 84% generic drugs by claim count, with $132K in brand drug costs.
How many Nephrology Physician providers are there in the US? ▼
There are 10,534 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does Tina Ko, DO prescribe most often? ▼
Based on 2023 Medicare Part D data, Tina Ko, DO's most frequently prescribed drugs include Calcitriol, Lisinopril, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Tina Ko, DO accept Medicare? ▼
Tina Ko, DO appears in CMS Medicare data with 1,053 Part D claims and 161 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Tina Ko, DO's credentials? ▼
Tina Ko, DO's NPI is 1437174323 with credentials DO. 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
Compiled from official public sources by the PlainDoctor editorial team.