NPI registry status
Active
2026 NPPES data Clinical Neurophysiology Physician NPI 1104876713 MD
Verify on CMS → Mark Lin, MD
Clinical Neurophysiology Physician in Washington, District of Columbia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 639 in Clinical Neurophysiology 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
693
Medicare Part D claims · 175 beneficiaries · Clinical Neurophysiology Physician avg: 2K
MIPS score
76.6/100
▼ 7 pts below national avg 83.1 · Above neutral
Industry payments
$14.28
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Mark Lin, MD reported a CMS MIPS final score of 76.6/100 - below the 83.1 national average - and filed 693 Medicare Part D claims in 2023.
- 76.6/100
- MIPS score · -7 vs avg
- 693
- Part D claims, 2023
- 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.
Mark Lin, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
77 21st percentile higher than 21% 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 Mark Lin, MD sits
This provider among clinical neurophysiology physician peers
Across the 187 clinical neurophysiology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Mark Lin, MD writes more Part D claims than 36% of them and scores higher on MIPS quality than 26% - placing this provider in the lower-volume, lower-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 clinical neurophysiology physician peer from a representative sample of 60; the gold marker is Mark Lin, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Mark Lin, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 3 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 Mark Lin, MD?
Below national averagePrimary specialty
Clinical Neurophysiology Physician
Medicare Part D claims
693 54% vs specialty avg
MIPS final score
76.6/100 6.5 pts vs avg
Specialty distribution in District of Columbia
How Clinical Neurophysiology Physician compares to other specialties among District of Columbia providers
Medicare quality performance, MIPS
Mark Lin, MD's 2023 MIPS final score plotted against the Clinical Neurophysiology Physician national average
- MIPS Final Score
- 76.6/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Clinical Neurophysiology Physician) - 76.6/100 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).
Mark Lin, MD appears in the CMS NPPES registry as a Clinical Neurophysiology Physician provider holding MD credentials at 110 IRVING ST NW, Washington, DC, 20010, with a listed phone of (202) 877-0333. NPI 1104876713 was issued on 05/12/2006.
Medicare Part D records for calendar year 2023 show 693 prescription claims written by this provider, covering 175 Medicare beneficiaries and totaling roughly $294K in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 76.6/100 for the 2023 performance year (Quality 63.2, Cost 55.9), compared with the national average of 83.1.
Clinical Neurophysiology Physician is a narrow specialty nationwide, with 639 enrolled providers across 50 states and an average of 1,523 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 | 1104876713 |
|---|---|
| Specialty | Clinical Neurophysiology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 05/12/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
76.555
Final Score
Avg: 83.1
63.1616
Quality
55.9413
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Mark Lin, MD 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, Mark Lin, MD is affiliated with 3 Medicare-billing facilities across 2 states.
Medstar Medical Group II LLC
Washington, DC
Mgmc LLC
Washington, DC
Suburban/nrh Medical Rehabilitation Inc
Bethesda, MD
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 Mark Lin, MD. Source: openpaymentsdata.cms.gov.
Total received
$14
Largest payer
ABBVIE 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
693
Total Claims
$294K
Total Drug Cost
175
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,194
- Total Day Supply
- 35,087
- Generic Drug Cost
- $92K
Patient Demographics
- Average Patient Age
- 73.2 years
- Avg HCC Risk Score
- 1.88
- Gender Split
- 56% female / 44% male
- Age Distribution
- <65: 24, 65-74: 68, 75-84: 61, 85+: 22
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mark Lin, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Carbidopa-Levodopa…
Carbidopa-Levodopa-Entacapone
206 claims
- Carbidopa-Levodopa 66
Carbidopa-Levodopa
66 claims
- Gabapentin 41
Gabapentin
41 claims
- Levetiracetam 40
Levetiracetam
40 claims
- Donepezil Hcl 37
Donepezil Hcl
37 claims
- Primidone 31
Primidone
31 claims
- Carbidopa-Levodopa… 26
Carbidopa-Levodopa Er
26 claims
- Levetiracetam Er 19
Levetiracetam Er
19 claims
| Drug | Claims |
|---|---|
| Carbidopa-Levodopa-Entacapone Carbidopa/Levodopa/Entacapone | 206 |
| Carbidopa-Levodopa Carbidopa/Levodopa | 66 |
| Gabapentin | 41 |
| Levetiracetam | 40 |
| Donepezil Hcl | 37 |
| Primidone | 31 |
| Carbidopa-Levodopa Er Carbidopa/Levodopa | 26 |
| Levetiracetam Er Levetiracetam | 19 |
| Namzaric Memantine Hcl/Donepezil Hcl | 16 |
| Propranolol Hcl Er Propranolol Hcl | 16 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Clinical Neurophysiology Physician in DC →
All providers in District of Columbia →
Compare specialties →
Clinical Neurophysiology Physician Overview
How Mark Lin, MD fits within the Clinical Neurophysiology Physician landscape nationally.
639
Clinical Neurophysiology Physician Providers in US
50
States with Clinical Neurophysiology Physician
1,523
Avg Claims per Provider
Mark Lin, MD's 693 claims are below the specialty average of 1,523.
Nearby Clinical Neurophysiology Physician Providers in District of Columbia
Other clinicians with the same primary specialty enrolled in District of Columbia, drawn from the same CMS NPPES roster as Lin.
Dr. Irene Chatoor
MD
Washington, DC
Dr. Lisa Cullins
MD
Washington, DC
Dr. Marc Dalton
MD
Washington, DC
Dr. Paramjit Joshi
MD
Washington, DC
Dr. Robert Laureno
MD
Washington, DC
Compare Clinical Neurophysiology 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 District of Columbia medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Clinical Neurophysiology 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
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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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Explore District of Columbia
Frequently Asked Questions
What is Mark Lin, MD's specialty? ▼
Mark Lin, MD specializes in Clinical Neurophysiology Physician and practices in Washington, District of Columbia. Credentials: MD.
How much does Mark Lin, MD prescribe under Medicare Part D? ▼
In 2023, Mark Lin, MD wrote 693 Medicare Part D claims totaling $294K in drug costs for 175 beneficiaries.
What is Mark Lin, MD's Medicare quality score? ▼
Mark Lin, MD has a CMS MIPS Final Score of 76.6/100 (Quality: 63.2, Cost: 55.9). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Mark Lin, MD located? ▼
Mark Lin, MD is located at 110 IRVING ST NW, Washington, DC, 20010. Phone: (202) 877-0333.
What is Mark Lin, MD's NPI number? ▼
Mark Lin, MD's National Provider Identifier (NPI) is 1104876713, issued on 05/12/2006.
How many Clinical Neurophysiology Physician providers are there in the US? ▼
There are 639 Clinical Neurophysiology Physician providers across 50 states in the US. The average Clinical Neurophysiology Physician provider writes 1,523 Medicare Part D claims per year.
What drugs does Mark Lin, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Mark Lin, MD's most frequently prescribed drugs include Carbidopa-Levodopa-Entacapone, Carbidopa-Levodopa, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mark Lin, MD accept Medicare? ▼
Mark Lin, MD appears in CMS Medicare data with 693 Part D claims and 175 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mark Lin, MD's credentials? ▼
Mark Lin, MD's NPI is 1104876713 with credentials MD. 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.