NPI registry status
Active
2026 NPPES data Geriatric Medicine (Family Medicine) Physician NPI 1164803391 D.O.
Verify on CMS → Seo Choi, D.O.
Geriatric Medicine (Family Medicine) Physician in Greenwich, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,779 in Geriatric Medicine (Family 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
406
Medicare Part D claims · 66 beneficiaries · Geriatric Medicine (Family Medicine) Physician avg: 5K
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$59.12
3 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
Seo Choi, D.O. filed 406 Medicare Part D claims in 2023 as a Geriatric Medicine (Family Medicine) Physician in Greenwich, Connecticut, prescribing 93% generic.
- 406
- Part D claims, 2023
- 93%
- 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.
Seo Choi, D.O.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
406 Top 38% higher than 62% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Seo Choi, D.O. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Seo Choi, D.O.?
Quality data not reportedPrimary specialty
Geriatric Medicine (Family Medicine) Physician
Medicare Part D claims
406 92% vs specialty avg
Specialty distribution in Connecticut
How Geriatric Medicine (Family Medicine) Physician compares to other specialties among Connecticut providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Geriatric Medicine (Family Medicine) Physician. Verify directly:
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).
Seo Choi, D.O. appears in the CMS NPPES registry as a Geriatric Medicine (Family Medicine) Physician provider holding D.O. credentials at 75 HOLLY HILL LN STE 201, Greenwich, CT, 06830, with a listed phone of (203) 276-2516. NPI 1164803391 was issued on 06/12/2015.
Medicare Part D records for calendar year 2023 show 406 prescription claims written by this provider, covering 66 Medicare beneficiaries and totaling roughly $17K in drug spend, split 7% brand-name and 93% generic by claim count, with an opioid prescribing rate of 17.5%.
Geriatric Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 1,779 enrolled providers across 52 states and an average of 4,854 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 | 1164803391 |
|---|---|
| Specialty | Geriatric Medicine (Family Medicine) Physician |
| Credentials | D.O. |
| Gender | Female |
| NPI Issued | 06/12/2015 |
Hospital and facility affiliations
Facilities where Seo Choi, D.O. 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
Greenwich, 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 Seo Choi, D.O.. Source: openpaymentsdata.cms.gov.
Total received
$59
Largest payer
Otsuka America Pharmaceutical, 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 · Generic-heavy
Seo Choi, D.O. - brand share 7.0%
Geriatric Medicine (Family Medicine) Physician average
7% brand-name claims vs 93% generic, on 406 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.
406
Total Claims
$17K
Total Drug Cost
66
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 487
- Total Day Supply
- 12,725
- Brand vs Generic
- 7% brand / 93% generic
- Brand Drug Cost
- $6K
- Generic Drug Cost
- $11K
- Opioid Claims
- 71 (17.5% rate)
Patient Demographics
- Average Patient Age
- 77.7 years
- Avg HCC Risk Score
- 1.69
- Gender Split
- 65% female / 35% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Seo Choi, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Donepezil Hcl
Donepezil Hcl
34 claims
- Memantine Hcl
Memantine Hcl
31 claims
- Atorvastatin Calcium
Atorvastatin Calcium
23 claims
- Oxycodone Hcl
Oxycodone Hcl
20 claims
- Hydromorphone Hcl
Hydromorphone Hcl
19 claims
- Levothyroxine Sodium
Levothyroxine Sodium
19 claims
- Fentanyl
Fentanyl
18 claims
- Escitalopram Oxalate
Escitalopram Oxalate
17 claims
| Drug | Claims |
|---|---|
| Donepezil Hcl | 34 |
| Memantine Hcl | 31 |
| Atorvastatin Calcium | 23 |
| Oxycodone Hcl | 20 |
| Hydromorphone Hcl | 19 |
| Levothyroxine Sodium | 19 |
| Fentanyl | 18 |
| Escitalopram Oxalate | 17 |
| Tradjenta Linagliptin | 17 |
| Buspirone Hcl | 16 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Geriatric Medicine (Family Medicine) Physician in CT →
All providers in Connecticut →
Compare specialties →
Geriatric Medicine (Family Medicine) Physician Overview
How Seo Choi, D.O. fits within the Geriatric Medicine (Family Medicine) Physician landscape nationally.
1,779
Geriatric Medicine (Family Medicine) Physician Providers in US
52
States with Geriatric Medicine (Family Medicine) Physician
4,854
Avg Claims per Provider
Seo Choi, D.O.'s 406 claims are below the specialty average of 4,854.
Nearby Geriatric Medicine (Family Medicine) Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Choi.
Dr. George Barth
M.D.
Waterbury, CT
Dr. Rohini Becherl
M.D.
Hartford, CT
Dr. Laura Belland
M.D.
Bridgeport, CT
Dr. Patrick Coll
MD
Farmington, CT
Dr. Jessica Dacosta
APRN, AGNP
Brookfield, CT
Compare Geriatric Medicine (Family Medicine) 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 Connecticut medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Geriatric Medicine (Family 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
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
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How insurance networks affect your costs
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Frequently Asked Questions
What is Seo Choi, D.O.'s specialty? ▼
Seo Choi, D.O. specializes in Geriatric Medicine (Family Medicine) Physician and practices in Greenwich, Connecticut. Credentials: D.O..
How much does Seo Choi, D.O. prescribe under Medicare Part D? ▼
In 2023, Seo Choi, D.O. wrote 406 Medicare Part D claims totaling $17K in drug costs for 66 beneficiaries.
Where is Seo Choi, D.O. located? ▼
Seo Choi, D.O. is located at 75 HOLLY HILL LN STE 201, Greenwich, CT, 06830. Phone: (203) 276-2516.
What is Seo Choi, D.O.'s NPI number? ▼
Seo Choi, D.O.'s National Provider Identifier (NPI) is 1164803391, issued on 06/12/2015.
Does Seo Choi, D.O. prescribe more brand-name or generic drugs? ▼
Seo Choi, D.O.'s prescribing is 7% brand-name and 93% generic drugs by claim count, with $6K in brand drug costs.
Does Seo Choi, D.O. prescribe opioids? ▼
Yes, Seo Choi, D.O. had 71 opioid claims in 2023 with an opioid prescribing rate of 17.5%.
How many Geriatric Medicine (Family Medicine) Physician providers are there in the US? ▼
There are 1,779 Geriatric Medicine (Family Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Family Medicine) Physician provider writes 4,854 Medicare Part D claims per year.
What drugs does Seo Choi, D.O. prescribe most often? ▼
Based on 2023 Medicare Part D data, Seo Choi, D.O.'s most frequently prescribed drugs include Donepezil Hcl, Memantine Hcl, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Seo Choi, D.O. accept Medicare? ▼
Seo Choi, D.O. appears in CMS Medicare data with 406 Part D claims and 66 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Seo Choi, D.O.'s credentials? ▼
Seo Choi, D.O.'s NPI is 1164803391 with credentials D.O.. 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.
- 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.