2026 NPPES data Neurology Physician NPI 1639523574 M.D., M.B.S.
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JACK SHEN, M.D., M.B.S.

Neurology Physician in ROSWELL, Georgia. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
2K
Medicare Part D claims · 333 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
92.9348/100
▲ 10 pts above national avg 83.1 · [object Object]

What the federal data shows

JACK SHEN, M.D., M.B.S. reported a CMS MIPS final score of 92.9348/100 — above the 83.1 national average — and filed 1,818 Medicare Part D claims in 2023.

92.9348/100
MIPS score · +10 vs avg
2K
Part D claims, 2023
92%
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.

JACK SHEN, M.D., M.B.S.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

93 Top 32% higher than 68% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

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

Board certification likely (heuristic — not verified)

JACK SHEN, M.D., M.B.S. 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 JACK SHEN, M.D., M.B.S.?

High performer (top quartile)

NPI registry status

Active

Issued 04/18/2016

NPI 1639523574

Primary specialty

Neurology Physician

Mid-sized

19,866 US NPIs in this specialty

Medicare Part D claims

1,818 39% vs specialty avg

2023 prescription claims

Specialty avg: 1,309

MIPS final score

92.9348/100 9.834800000000001% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Georgia

How Neurology Physician compares to other specialties among Georgia providers

Georgia providers

Neurology Physician share within Georgia

1. Neurology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Neurology Physician share within Georgia

Medicare quality performance — MIPS

JACK SHEN, M.D., M.B.S.'s 2023 MIPS final score plotted against the Neurology Physician national average

High performer (top quartile)
MIPS Final Score
92.9348/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Neurology Physician) — 92.9348/100 vs national avg 83.1

0%100%National avg83%92.9%
MIPS final score (Neurology Physician) — 92.9348/100 vs national avg 83.1

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).

JACK SHEN, M.D., M.B.S. appears in the CMS NPPES registry as a Neurology Physician provider holding M.D., M.B.S. credentials at 2500 HOSPITAL BLVD STE 440, ROSWELL, GA, 30076, with a listed phone of (770) 663-4649. NPI 1639523574 was issued on 04/18/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SHEN most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,818 prescription claims written by this provider, covering 333 Medicare beneficiaries and totaling roughly $364K in drug spend, split 8% brand-name and 92% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 92.9348/100 for the 2023 performance year (Quality 80.3814), compared with the national average of 83.1.

Neurology Physician is a mid-sized specialty nationwide, with 19,866 enrolled providers across 54 states and an average of 1,309 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

2500 HOSPITAL BLVD STE 440
ROSWELL, GA 30076

Provider Details

NPI 1639523574
Specialty Neurology Physician
Credentials M.D., M.B.S.
Gender Male
NPI Issued 04/18/2016

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

92.9348
Final Score
Avg: 83.1
80.3814
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where JACK SHEN, M.D., M.B.S. 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.

GEORGIALINA PHYSICAL THERAPY ASSOCIATES LLC
AUGUSTA, GA
LEGACY HEALTHCARE SERVICES INC
WINDER, GA
WELLSTAR MEDICAL GROUP LLC
ROSWELL, 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

JACK SHEN, M.D., M.B.S. — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 1,818 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.

1,818
Total Claims
$364K
Total Drug Cost
333
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,318
Total Day Supply
96,923
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$283K
Generic Drug Cost
$81K

Patient Demographics

Average Patient Age
75.1 years
Avg HCC Risk Score
1.51
Gender Split
48% female / 52% male
Age Distribution
<65: 18, 65-74: 132, 75-84: 148, 85+: 35

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What JACK SHEN, M.D., M.B.S. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Carbidopa-Levodopa
Carbidopa/Levodopa
480
Carbidopa-Levodopa Er
Carbidopa/Levodopa
146
Primidone
126
Gabapentin
123
Rivastigmine
Rivastigmine Tartrate
118
Clonazepam
85
Rytary
Carbidopa/Levodopa
83
Donepezil Hcl
69
Trihexyphenidyl Hcl
64
Propranolol Hcl
61

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Neurology Physician Overview

How JACK SHEN, M.D., M.B.S. fits within the Neurology Physician landscape nationally.

19,866
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider

JACK SHEN, M.D., M.B.S.'s 1,818 claims are above the specialty average of 1,309.

Nearby Neurology Physician Providers in Georgia

Other clinicians with the same primary specialty enrolled in Georgia, drawn from the same CMS NPPES roster as SHEN.

Compare Neurology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JACK SHEN, M.D., M.B.S.'s specialty?
JACK SHEN, M.D., M.B.S. specializes in Neurology Physician and practices in ROSWELL, Georgia. Credentials: M.D., M.B.S..
How much does JACK SHEN, M.D., M.B.S. prescribe under Medicare Part D?
In 2023, JACK SHEN, M.D., M.B.S. wrote 1,818 Medicare Part D claims totaling $364K in drug costs for 333 beneficiaries.
What is JACK SHEN, M.D., M.B.S.'s Medicare quality score?
JACK SHEN, M.D., M.B.S. has a CMS MIPS Final Score of 92.9348/100 (Quality: 80.3814). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JACK SHEN, M.D., M.B.S. located?
JACK SHEN, M.D., M.B.S. is located at 2500 HOSPITAL BLVD STE 440, ROSWELL, GA, 30076. Phone: (770) 663-4649.
What is JACK SHEN, M.D., M.B.S.'s NPI number?
JACK SHEN, M.D., M.B.S.'s National Provider Identifier (NPI) is 1639523574, issued on 04/18/2016.
Does JACK SHEN, M.D., M.B.S. prescribe more brand-name or generic drugs?
JACK SHEN, M.D., M.B.S.'s prescribing is 8% brand-name and 92% generic drugs by claim count, with $283K in brand drug costs.
How many Neurology Physician providers are there in the US?
There are 19,866 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does JACK SHEN, M.D., M.B.S. prescribe most often?
Based on 2023 Medicare Part D data, JACK SHEN, M.D., M.B.S.'s most frequently prescribed drugs include Carbidopa-Levodopa, Carbidopa-Levodopa Er, Primidone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JACK SHEN, M.D., M.B.S. accept Medicare?
JACK SHEN, M.D., M.B.S. appears in CMS Medicare data with 1,818 Part D claims and 333 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JACK SHEN, M.D., M.B.S.'s credentials?
JACK SHEN, M.D., M.B.S.'s NPI is 1639523574 with credentials M.D., M.B.S.. 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

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