NPI registry status
Active
2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1215043278 M.D.
Verify on CMS → Kalai Parthiban, M.D.
Geriatric Medicine (Internal Medicine) Physician in Atlanta, Georgia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 4,171 in Geriatric Medicine (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
188
Medicare Part D claims · 98 beneficiaries · Geriatric Medicine (Internal Medicine) Physician avg: 4K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
86/100
▲ 2 pts above national avg 83.5 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Kalai Parthiban, M.D. reported a CMS MIPS final score of 86/100 - above the 83.5 national average - and filed 188 Medicare Part D claims in 2023.
- 86/100
- MIPS score · +2 vs avg
- 188
- 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.
Kalai Parthiban, M.D.'s MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
86 ≥ 46th percentile 46% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Kalai Parthiban, M.D. sits
This provider among geriatric medicine (internal medicine) physician peers
Across the 686 geriatric medicine (internal medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Kalai Parthiban, M.D. writes more Part D claims than 16% of them and scores higher on MIPS quality than 51% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one geriatric medicine (internal medicine) physician peer from a representative sample of 60; the gold marker is Kalai Parthiban, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Kalai Parthiban, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 4 hospital affiliations - 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 Kalai Parthiban, M.D.?
High performer (top quartile)Primary specialty
Geriatric Medicine (Internal Medicine) Physician
Medicare Part D claims
188 96% vs specialty avg
MIPS final score
86/100 2.5 pts vs avg
Specialty distribution in Georgia
How Geriatric Medicine (Internal Medicine) Physician compares to other specialties among Georgia providers
Medicare quality performance, MIPS
Kalai Parthiban, M.D.'s 2023 MIPS final score plotted against the Geriatric Medicine (Internal Medicine) Physician national average
- MIPS Final Score
- 86/100
- vs 83.5 national avg · 2023 performance year
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).
Kalai Parthiban, M.D. appears in the CMS NPPES registry as a Geriatric Medicine (Internal Medicine) Physician provider holding M.D. credentials at 35 COLLIER RD NW STE 635, Atlanta, GA, 30309, with a listed phone of (404) 367-3014. NPI 1215043278 was issued on 08/22/2006.
Medicare Part D records for calendar year 2023 show 188 prescription claims written by this provider, covering 98 Medicare beneficiaries and totaling roughly $10K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 6.4%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 86/100 for the 2023 performance year (Quality 68, Cost 80.6), compared with the 83.5 average among clinicians with a measured score.
Geriatric Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 4,171 enrolled providers across 52 states and an average of 4,450 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 | 1215043278 |
|---|---|
| Specialty | Geriatric Medicine (Internal Medicine) Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 08/22/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
85.9941
Final Score
Measured-score avg: 83.5
67.989
Quality
80.6352
Cost
Reporting: Group practice
Hospital and facility affiliations
Facilities where Kalai Parthiban, 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.
According to CMS billing records, Kalai Parthiban, M.D. is affiliated with 4 Medicare-billing facilities.
Allatoona Physician Services PC
Cartersville, GA
Apogee Medical Group Georgia
Carrollton, GA
Cogent Healthcare OF Macon, LLC
Perry, GA
Hightower Physician Services, PC
Thomaston, GA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Generic-heavy
Kalai Parthiban, M.D. - brand share 9.0%
Geriatric Medicine (Internal Medicine) Physician average
9% brand-name claims vs 91% generic, on 188 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.
188
Total Claims
$10K
Total Drug Cost
98
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 189
- Total Day Supply
- 3,772
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $8K
- Generic Drug Cost
- $2K
- Opioid Claims
- 12 (6.4% rate)
- Antibiotic Claims
- 32
Patient Demographics
- Average Patient Age
- 73.6 years
- Avg HCC Risk Score
- 2.67
- Gender Split
- 53% female / 47% male
- Age Distribution
- <65: 13, 65-74: 41, 75-84: 28, 85+: 16
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Levofloxacin | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Geriatric Medicine (Internal Medicine) Physician in GA →
All providers in Georgia →
Compare specialties →
Geriatric Medicine (Internal Medicine) Physician Overview
How Kalai Parthiban, M.D. fits within the Geriatric Medicine (Internal Medicine) Physician landscape nationally.
4,171
Geriatric Medicine (Internal Medicine) Physician Providers in US
52
States with Geriatric Medicine (Internal Medicine) Physician
4,450
Avg Claims per Provider
Kalai Parthiban, M.D.'s 188 claims are below the specialty average of 4,450.
Nearby Geriatric Medicine (Internal Medicine) Physician Providers in Georgia
Other clinicians with the same primary specialty enrolled in Georgia, drawn from the same CMS NPPES roster as Parthiban.
One of 75 Geriatric Medicine (Internal Medicine) Physician providers enrolled in Georgia, 5 are shown here.
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 Georgia medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Geriatric Medicine (Internal Medicine) 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Georgia
Frequently Asked Questions
What is Kalai Parthiban, M.D.'s specialty? ▼
Kalai Parthiban, M.D. specializes in Geriatric Medicine (Internal Medicine) Physician and practices in Atlanta, Georgia. Credentials: M.D..
How much does Kalai Parthiban, M.D. prescribe under Medicare Part D? ▼
In 2023, Kalai Parthiban, M.D. wrote 188 Medicare Part D claims totaling $10K in drug costs for 98 beneficiaries.
What is Kalai Parthiban, M.D.'s Medicare quality score? ▼
Kalai Parthiban, M.D. has a CMS MIPS Final Score of 86/100 (Quality: 68, Cost: 80.6). 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 Kalai Parthiban, M.D. located? ▼
Kalai Parthiban, M.D. is located at 35 COLLIER RD NW STE 635, Atlanta, GA, 30309. Phone: (404) 367-3014.
What is Kalai Parthiban, M.D.'s NPI number? ▼
Kalai Parthiban, M.D.'s National Provider Identifier (NPI) is 1215043278, issued on 08/22/2006.
Does Kalai Parthiban, M.D. prescribe more brand-name or generic drugs? ▼
Kalai Parthiban, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $8K in brand drug costs.
Does Kalai Parthiban, M.D. prescribe opioids? ▼
Yes, Kalai Parthiban, M.D. had 12 opioid claims in 2023 with an opioid prescribing rate of 6.4%.
How many Geriatric Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 4,171 Geriatric Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Internal Medicine) Physician provider writes 4,450 Medicare Part D claims per year.
What drugs does Kalai Parthiban, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Kalai Parthiban, M.D.'s most frequently prescribed drugs include Levofloxacin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kalai Parthiban, M.D. accept Medicare? ▼
Kalai Parthiban, M.D. appears in CMS Medicare data with 188 Part D claims and 98 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kalai Parthiban, M.D.'s credentials? ▼
Kalai Parthiban, M.D.'s NPI is 1215043278 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.