Lonnie Seo
- Medicare services, 2024
- 664
- Medicare patients, 2024
- 631
- Part D claims, 2024
- 253
- MIPS score, 2024
- 96
- Hospital affiliations
- 1
- Practice address
- 1 Hospital Plz, Stamford, CT 06902
- Practice phone
- Call (203) 276-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Stamford Hospital
Stamford, Connecticut
Find Lonnie Seo's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Lonnie Seo is an emergency medicine physician in Stamford, Connecticut
Lonnie Seo practices at Stamford Hospital in Stamford, Connecticut.
Lonnie Seo's NPI, 1740785211, was assigned on March 27, 2018. Lonnie Seo graduated from Rutgers New Jersey Medical School in 2018. Lonnie Seo holds Connecticut license 67025.
- NPI
- 1740785211NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486900982
- NPI enumeration date
- March 27, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (203) 276-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Lonnie Seo practices at Stamford Hospital in Stamford, Connecticut
Lonnie Seo's primary practice is Stamford Hospital, at 1 Hospital Plz, Stamford, CT 06902 in Western Ct County. The practice phone is (203) 276-1000.
- Stamford Hospital1 Hospital Plz, Stamford, CT 06902 · Western Ct CountyPhone(203) 276-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Lonnie Seo is affiliated with 2 sites of care and 2 medical groups
Lonnie Seo's primary practice is Stamford Hospital in Stamford, Connecticut. Lonnie Seo is also affiliated with Stamford Hospital. The medical group on file is Emergency Medicine Physicians. Dmand AI also links Lonnie Seo to 1 more medical group, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Lonnie Seo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Lonnie Seo practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stamford Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Lonnie Seo is one of 683 emergency medicine physicians in Connecticut
Emergency medicine is Lonnie Seo's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Lonnie Seo is licensed in Connecticut.
Specialties and state licenses
- Emergency medicine, ConnecticutPrimary
Emergency medicine physicians near Lonnie Seo
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Lonnie Seo billed Medicare for 664 services in 2024
CMS data shows 664 Medicare services from Lonnie Seo across 8 procedure codes in 2024, for 631 Medicare patients. Medicare paid $83,860 for them.
Lonnie Seo's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7112024: 6647%
Where Lonnie Seo's Medicare services took place, 2024
- In an office528%
- In a facility61292%
Lonnie Seo compared with the Connecticut median for emergency medicine physicians, 2024
- Lonnie Seo
- Connecticut median
- Medicare services
- 664vs 2432.7 times
- Medicare patients
- 631vs 2502.5 times
- Part D claims
- 114vs 482.4 times
Medians across 695 emergency medicine physicians in Connecticut with Dmand AI profiles that report each measure.
Lonnie Seo's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Lonnie Seo and other emergency medicine physicians in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Lonnie Seo treated 631 Medicare patients in 2024, average age 79
CMS counts 631 Medicare patients who saw Lonnie Seo in 2024. The largest group is 75 to 84, with 223 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 29% are also on Medicaid. Their average risk score is 2.04, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Lonnie Seo's median patient age at 52, with 55% women.
Lonnie Seo's Medicare patients by age, 2024
Lonnie Seo's Medicare patients by sex, 2024
- Women35656%
- Men27544%
Chronic conditions among Lonnie Seo's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Ischemic heart disease43%
- Mood disorders39%
- Anxiety37%
- Depression36%
- Atrial fibrillation35%
Share of Medicare patients with each condition. A patient can have several.
Lonnie Seo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Lonnie Seo wrote 253 Medicare Part D claims in 2024
In 2024, Lonnie Seo wrote 253 Medicare Part D claims for 192 patients. 96% of them were for generic drugs. CMS names the drug for 114 of them, across 5 drugs with 11 or more claims each, at $1,234 in total drug cost. In 2023, CMS named 130 claims across 7 drugs.
Lonnie Seo's Part D claims by kind of drug, 2024
- Generic243 claims96%
- Brand-name and other10 claims4%
Lonnie Seo's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Lonnie Seo's Part D claims, 2024
- Opioids4%11 of 253 claims
- Antibiotics44%111 of 253 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1302024: 11412%
Drugs named by CMS: 5 in 2024, 7 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Lonnie Seo scored 96 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 96 out of 100 for Lonnie Seo for performance year 2024, reported as part of a group. Lonnie Seo accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Lonnie Seo's MIPS scores, performance year 2024
- 96of 100Final score
- 89.2of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Lonnie Seo graduated from Rutgers New Jersey Medical School
Lonnie Seo graduated from Rutgers New Jersey Medical School in 2018.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Lonnie Seo's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Lonnie Seo
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Lonnie Seo's NPI number?
Lonnie Seo's NPI number is 1740785211. It was assigned on March 27, 2018, and it is active in the NPI Registry.
What does Lonnie Seo specialize in?
Lonnie Seo is an emergency medicine physician in Stamford, Connecticut. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Lonnie Seo practice?
Lonnie Seo practices at 1 Hospital Plz, Stamford, CT 06902. Lonnie Seo's primary practice is Stamford Hospital in Stamford, Connecticut. Dmand AI also links Lonnie Seo to 1 medical group.
What is Lonnie Seo's office phone number?
The practice phone on file for Lonnie Seo is (203) 276-1000.
What is Lonnie Seo's medical license number?
Lonnie Seo holds Connecticut license 67025.
Which hospitals is Lonnie Seo affiliated with?
Lonnie Seo is affiliated with Stamford Hospital.
What medical group is Lonnie Seo part of?
Lonnie Seo is linked to Emergency Medicine Physicians. Dmand AI links Lonnie Seo to 1 more medical group.
Does Lonnie Seo accept Medicare?
Yes. CMS data shows Lonnie Seo billed Medicare for 664 services in 2024, and Lonnie Seo accepts Medicare assignment.
What is Lonnie Seo's MIPS score?
Lonnie Seo's MIPS final score for performance year 2024 is 96 out of 100, reported as part of a group.
How many Medicare patients does Lonnie Seo see?
CMS counts 631 Medicare patients who saw Lonnie Seo in 2024, with an average age of 79.
Show 4 more questionsShow fewer questions
What services does Lonnie Seo bill to Medicare?
In 2024, Lonnie Seo's most billed Medicare services were emergency department visit (99285), critical care (99291) and emergency department visit (99284).
Where did Lonnie Seo go to medical school?
Lonnie Seo graduated from Rutgers New Jersey Medical School in 2018.
What drugs does Lonnie Seo prescribe most?
In 2024 Medicare Part D data, Lonnie Seo's most prescribed drugs by claims were Cephalexin, Prednisone and Ondansetron ODT.
How long has Lonnie Seo been practicing?
Lonnie Seo graduated from medical school in 2018, 8 years ago.
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