NPI registry status
Active
2026 NPPES data Rheumatology Physician NPI 1366558744 M.D., M.P.H.
Verify on CMS → Sung Lim, M.D., M.P.H.
Rheumatology 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 6,200 in Rheumatology 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
864
Medicare Part D claims · 176 beneficiaries · Rheumatology Physician avg: 2K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
92.3/100
▲ 9 pts above national avg 83.1 · Exceptional
Industry payments
$23.6K
29 payments · CMS Open Payments (Sunshine Act)
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
Sung Lim, M.D., M.P.H. reported a CMS MIPS final score of 92.3/100 - above the 83.1 national average - and filed 864 Medicare Part D claims in 2023.
- 92.3/100
- MIPS score · +9 vs avg
- 864
- Part D claims, 2023
- 86%
- 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.
Sung Lim, M.D., M.P.H.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
92 Top 32% higher than 68% 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 Sung Lim, M.D., M.P.H. sits
This provider among rheumatology physician peers
Across the 2,181 rheumatology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Sung Lim, M.D., M.P.H. writes more Part D claims than 22% of them and scores higher on MIPS quality than 69% - 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 rheumatology physician peer from a representative sample of 60; the gold marker is Sung Lim, M.D., M.P.H.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Sung Lim, M.D., M.P.H. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - 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 Sung Lim, M.D., M.P.H.?
High performer (top quartile)Primary specialty
Rheumatology Physician
Medicare Part D claims
864 58% vs specialty avg
MIPS final score
92.3/100 9.2 pts vs avg
Specialty distribution in Georgia
How Rheumatology Physician compares to other specialties among Georgia providers
Medicare quality performance, MIPS
Sung Lim, M.D., M.P.H.'s 2023 MIPS final score plotted against the Rheumatology Physician national average
- MIPS Final Score
- 92.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Rheumatology Physician) - 92.3/100 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).
Sung Lim, M.D., M.P.H. appears in the CMS NPPES registry as a Rheumatology Physician provider holding M.D., M.P.H. credentials at 49 JESSE HILL JR DR SE, Atlanta, GA, 30303, with a listed phone of (404) 616-3640. NPI 1366558744 was issued on 08/21/2006.
Medicare Part D records for calendar year 2023 show 864 prescription claims written by this provider, covering 176 Medicare beneficiaries and totaling roughly $718K in drug spend, split 14% brand-name and 86% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 92.3/100 for the 2023 performance year (Quality 73.8), compared with the national average of 83.1.
Rheumatology Physician is a mid-sized specialty nationwide, with 6,200 enrolled providers across 52 states and an average of 2,054 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 | 1366558744 |
|---|---|
| Specialty | Rheumatology Physician |
| Credentials | M.D., M.P.H. |
| Gender | Male |
| NPI Issued | 08/21/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
92.2614
Final Score
Avg: 83.1
73.8353
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Sung Lim, M.D., M.P.H. 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.
Emory Medical Care Foundation Inc
Atlanta, 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).
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 Sung Lim, M.D., M.P.H.. Source: openpaymentsdata.cms.gov.
Total received
$23.6K
Largest payer
AstraZeneca Pharmaceuticals LP
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.
Brand vs generic prescribing mix · Typical
Sung Lim, M.D., M.P.H. - brand share 14.0%
Rheumatology Physician average
14% brand-name claims vs 86% generic, on 864 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.
864
Total Claims
$718K
Total Drug Cost
176
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,381
- Total Day Supply
- 40,586
- Brand vs Generic
- 14% brand / 86% generic
- Brand Drug Cost
- $687K
- Generic Drug Cost
- $31K
Patient Demographics
- Average Patient Age
- 61.4 years
- Avg HCC Risk Score
- 1.94
- Gender Split
- 83% female / 17% male
- Age Distribution
- <65: 89, 65-74: 65, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Sung Lim, M.D., M.P.H. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Hydroxychloroquine…
Hydroxychloroquine Sulfate
169 claims
- Prednisone
Prednisone
121 claims
- Methotrexate
Methotrexate
118 claims
- Alendronate Sodium 44
Alendronate Sodium
44 claims
- Humira Pen 40
Humira Pen
40 claims
- Mycophenolate Mofe… 36
Mycophenolate Mofetil
36 claims
- Azathioprine 33
Azathioprine
33 claims
- Enbrel Sureclick 24
Enbrel Sureclick
24 claims
| Drug | Claims |
|---|---|
| Hydroxychloroquine Sulfate | 169 |
| Prednisone | 121 |
| Methotrexate Methotrexate Sodium | 118 |
| Alendronate Sodium | 44 |
| Humira Pen Adalimumab | 40 |
| Mycophenolate Mofetil | 36 |
| Azathioprine | 33 |
| Enbrel Sureclick Etanercept | 24 |
| Gabapentin | 24 |
| Sulfasalazine | 24 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Rheumatology Physician Overview
How Sung Lim, M.D., M.P.H. fits within the Rheumatology Physician landscape nationally.
6,200
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,054
Avg Claims per Provider
Sung Lim, M.D., M.P.H.'s 864 claims are below the specialty average of 2,054.
Nearby Rheumatology Physician Providers in Georgia
Other clinicians with the same primary specialty enrolled in Georgia, drawn from the same CMS NPPES roster as Lim.
Dr. Ashley Abbott
MD
Woodstock, GA
Dr. Amir Agha
MD
Decatur, GA
Dr. Huma Ahmed
MD
Columbus, GA
Dr. Naveeda Ahmed
MD
Augusta, GA
Dr. Nilofer Ahsan
MD
Albany, GA
Compare Rheumatology 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 Georgia medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Rheumatology 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 Sung Lim, M.D., M.P.H.'s specialty? ▼
Sung Lim, M.D., M.P.H. specializes in Rheumatology Physician and practices in Atlanta, Georgia. Credentials: M.D., M.P.H..
How much does Sung Lim, M.D., M.P.H. prescribe under Medicare Part D? ▼
In 2023, Sung Lim, M.D., M.P.H. wrote 864 Medicare Part D claims totaling $718K in drug costs for 176 beneficiaries.
What is Sung Lim, M.D., M.P.H.'s Medicare quality score? ▼
Sung Lim, M.D., M.P.H. has a CMS MIPS Final Score of 92.3/100 (Quality: 73.8). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Sung Lim, M.D., M.P.H. located? ▼
Sung Lim, M.D., M.P.H. is located at 49 JESSE HILL JR DR SE, Atlanta, GA, 30303. Phone: (404) 616-3640.
What is Sung Lim, M.D., M.P.H.'s NPI number? ▼
Sung Lim, M.D., M.P.H.'s National Provider Identifier (NPI) is 1366558744, issued on 08/21/2006.
Does Sung Lim, M.D., M.P.H. prescribe more brand-name or generic drugs? ▼
Sung Lim, M.D., M.P.H.'s prescribing is 14% brand-name and 86% generic drugs by claim count, with $687K in brand drug costs.
How many Rheumatology Physician providers are there in the US? ▼
There are 6,200 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,054 Medicare Part D claims per year.
What drugs does Sung Lim, M.D., M.P.H. prescribe most often? ▼
Based on 2023 Medicare Part D data, Sung Lim, M.D., M.P.H.'s most frequently prescribed drugs include Hydroxychloroquine Sulfate, Prednisone, Methotrexate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sung Lim, M.D., M.P.H. accept Medicare? ▼
Sung Lim, M.D., M.P.H. appears in CMS Medicare data with 864 Part D claims and 176 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sung Lim, M.D., M.P.H.'s credentials? ▼
Sung Lim, M.D., M.P.H.'s NPI is 1366558744 with credentials M.D., M.P.H.. 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.
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.