2026 NPPES data Pain Medicine (Psychiatry & Neurology) Physician NPI 1639262686 M.D.
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ERIC KUNG, M.D.

Pain Medicine (Psychiatry & Neurology) Physician in STAMFORD, Connecticut. 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
976
Medicare Part D claims · 161 beneficiaries · Pain Medicine (Psychiatry & Neurology) Physician avg: 2K
Generic prescribing
73%
generic claims · 27% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
79.0781/100
▼ 4 pts below national avg 83.1 · [object Object]
Industry payments
$6.7K
20 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ERIC KUNG, M.D. reported a CMS MIPS final score of 79.0781/100 — below the 83.1 national average — and filed 976 Medicare Part D claims in 2023.

79.0781/100
MIPS score · -4 vs avg
976
Part D claims, 2023
73%
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.

ERIC KUNG, M.D.'s MIPS score vs every scored U.S. clinician

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

79 30th percentile higher than 30% 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%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. 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)

ERIC KUNG, M.D. 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 ERIC KUNG, M.D.?

Near national average

NPI registry status

Active

Issued 10/02/2006

NPI 1639262686

Primary specialty

Pain Medicine (Psychiatry & Neurology) Physician

Rare

161 US NPIs in this specialty

Medicare Part D claims

976 42% vs specialty avg

2023 prescription claims

Specialty avg: 1,690

MIPS final score

79.0781/100 4.021899999999988% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Connecticut

How Pain Medicine (Psychiatry & Neurology) Physician compares to other specialties among Connecticut providers

Connecticut providers

Pain Medicine (Psychiatry & Neurology) Physician share within Connecticut

1. Pain Medicine (Psychiatry & Neurology) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Pain Medicine (Psychiatry & Neurology) Physician share within Connecticut

Medicare quality performance — MIPS

ERIC KUNG, M.D.'s 2023 MIPS final score plotted against the Pain Medicine (Psychiatry & Neurology) Physician national average

Near national average
MIPS Final Score
79.0781/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Pain Medicine (Psychiatry & Neurology) Physician) — 79.0781/100 vs national avg 83.1

0%100%National avg83%79.1%
MIPS final score (Pain Medicine (Psychiatry & Neurology) Physician) — 79.0781/100 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).

ERIC KUNG, M.D. appears in the CMS NPPES registry as a Pain Medicine (Psychiatry & Neurology) Physician provider holding M.D. credentials at 1 BLACHLEY RD 2ND FL, STAMFORD, CT, 06902, with a listed phone of (203) 276-4464. NPI 1639262686 was issued on 10/02/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KUNG 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 976 prescription claims written by this provider, covering 161 Medicare beneficiaries and totaling roughly $314K in drug spend, split 27% brand-name and 73% generic by claim count, with an opioid prescribing rate of 3.6%. 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 79.0781/100 for the 2023 performance year (Quality 73.195, Cost 57.8987), compared with the national average of 83.1.

Pain Medicine (Psychiatry & Neurology) Physician is a narrow specialty nationwide, with 161 enrolled providers across 39 states and an average of 1,690 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

1 BLACHLEY RD 2ND FL
STAMFORD, CT 06902

Provider Details

NPI 1639262686
Specialty Pain Medicine (Psychiatry & Neurology) Physician
Credentials M.D.
Gender Male
NPI Issued 10/02/2006

CMS Quality Score (MIPS)

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

79.0781
Final Score
Avg: 83.1
73.195
Quality
57.8987
Cost
99
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where ERIC KUNG, 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.

STAMFORD HEALTH MEDICAL GROUP INC
STAMFORD, CT

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 ERIC KUNG, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$6.7K

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.

Brand vs generic prescribing mix · Above average

ERIC KUNG, M.D. — brand share 27.0%
Specialty average (est.)

27% brand-name claims vs 73% generic, on 976 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.

976
Total Claims
$314K
Total Drug Cost
161
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,449
Total Day Supply
42,036
Brand vs Generic
27% brand / 73% generic
Brand Drug Cost
$290K
Generic Drug Cost
$24K
Opioid Claims
35 (3.6% rate)

Patient Demographics

Average Patient Age
68.6 years
Avg HCC Risk Score
1.18
Gender Split
81% female / 19% male

Top Prescribed Drugs (Medicare Part D)

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

What ERIC KUNG, M.D. 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
Sumatriptan Succinate
108
Amitriptyline Hcl
83
Topiramate
81
Gabapentin
80
Nurtec Odt
Rimegepant Sulfate
80
Aimovig Autoinjector
Erenumab-Aooe
45
Botox
Onabotulinumtoxina
43
Rizatriptan
Rizatriptan Benzoate
43
Nortriptyline Hcl
32
Qulipta
Atogepant
29

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

Pain Medicine (Psychiatry & Neurology) Physician Overview

How ERIC KUNG, M.D. fits within the Pain Medicine (Psychiatry & Neurology) Physician landscape nationally.

161
Pain Medicine (Psychiatry & Neurology) Physician Providers in US
39
States with Pain Medicine (Psychiatry & Neurology) Physician
1,690
Avg Claims per Provider

ERIC KUNG, M.D.'s 976 claims are below the specialty average of 1,690.

Nearby Pain Medicine (Psychiatry & Neurology) Physician Providers in Connecticut

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

Compare Pain Medicine (Psychiatry & Neurology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ERIC KUNG, M.D.'s specialty?
ERIC KUNG, M.D. specializes in Pain Medicine (Psychiatry & Neurology) Physician and practices in STAMFORD, Connecticut. Credentials: M.D..
How much does ERIC KUNG, M.D. prescribe under Medicare Part D?
In 2023, ERIC KUNG, M.D. wrote 976 Medicare Part D claims totaling $314K in drug costs for 161 beneficiaries.
What is ERIC KUNG, M.D.'s Medicare quality score?
ERIC KUNG, M.D. has a CMS MIPS Final Score of 79.0781/100 (Quality: 73.195, Cost: 57.8987). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ERIC KUNG, M.D. located?
ERIC KUNG, M.D. is located at 1 BLACHLEY RD 2ND FL, STAMFORD, CT, 06902. Phone: (203) 276-4464.
What is ERIC KUNG, M.D.'s NPI number?
ERIC KUNG, M.D.'s National Provider Identifier (NPI) is 1639262686, issued on 10/02/2006.
Does ERIC KUNG, M.D. prescribe more brand-name or generic drugs?
ERIC KUNG, M.D.'s prescribing is 27% brand-name and 73% generic drugs by claim count, with $290K in brand drug costs.
Does ERIC KUNG, M.D. prescribe opioids?
Yes, ERIC KUNG, M.D. had 35 opioid claims in 2023 with an opioid prescribing rate of 3.6%.
How many Pain Medicine (Psychiatry & Neurology) Physician providers are there in the US?
There are 161 Pain Medicine (Psychiatry & Neurology) Physician providers across 39 states in the US. The average Pain Medicine (Psychiatry & Neurology) Physician provider writes 1,690 Medicare Part D claims per year.
What drugs does ERIC KUNG, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ERIC KUNG, M.D.'s most frequently prescribed drugs include Sumatriptan Succinate, Amitriptyline Hcl, Topiramate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ERIC KUNG, M.D. accept Medicare?
ERIC KUNG, M.D. appears in CMS Medicare data with 976 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 ERIC KUNG, M.D.'s credentials?
ERIC KUNG, M.D.'s NPI is 1639262686 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

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