Dr. Sergio Mejia, MD
- Medicare services, 2024
- 184
- Medicare patients, 2024
- 46
- Part D claims, 2024
- 2,149
- Hospital affiliations
- 1
- Industry payments
- $12,296
- Practice address
- 28 Crescent St, Middletown, CT 06457
- Practice phone
- Call (860) 344-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mejia's professional email, personal email and mobile number
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Dr. Sergio Mejia is a psychiatrist in Middletown, Connecticut
Dr. Mejia practices at Middlesex Hospital in Middletown, Connecticut, part of Middlesex Health System.
Dr. Mejia's NPI, 1932127214, was assigned on July 17, 2006. Dr. Mejia holds Connecticut license 024051.
- NPI
- 1932127214NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9830148329
- NPI enumeration date
- July 17, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (860) 344-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 82
- Medical school graduation
- 1970
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sergio Mejia practices at Middlesex Hospital in Middletown, Connecticut
Dr. Mejia's primary practice is Middlesex Hospital, at 28 Crescent St, Middletown, CT 06457 in Middlesex County. The practice phone is (860) 344-6000.
- Middlesex Hospital28 Crescent St, Middletown, CT 06457 · Middlesex CountyPhone(860) 344-6000
Source: Dmand AI Affiliation Data
Dr. Sergio Mejia is affiliated with 1 site of care and 1 medical group
Dr. Mejia's primary practice is Middlesex Hospital in Middletown, Connecticut, part of Middlesex Health System. The medical group on file is Middlesex Health. Dr. Mejia's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Sergio Mejia's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mejia practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Middlesex Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Middlesex Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Sergio Mejia is one of 828 psychiatrists in Connecticut
Psychiatry is Dr. Mejia's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Mejia is licensed in Connecticut.
Specialties and state licenses
- Psychiatry, ConnecticutPrimary
Psychiatrists near Dr. Mejia
Counts of psychiatrists 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
Dr. Sergio Mejia billed Medicare for 184 services in 2024
CMS data shows 184 Medicare services from Dr. Mejia across 2 procedure codes in 2024, all of them office visits, for 46 Medicare patients. Medicare paid $11,016 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mejia's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2242024: 18418%
- Tests and treatments
- 2023: 152024: 0100%
Dr. Mejia compared with the Connecticut median for psychiatrists, 2024
- Dr. Mejia
- Connecticut median
- Medicare services
- 184vs 11166% above
- Medicare patients
- 46vs 4015% above
- Part D claims
- 1,993vs 14214.0 times
Medians across 886 psychiatrists in Connecticut with Dmand AI profiles that report each measure.
Dr. Mejia'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 Dr. Mejia and other psychiatrists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sergio Mejia treated 46 Medicare patients in 2024, average age 63
CMS counts 46 Medicare patients who saw Dr. Mejia in 2024. The largest group is under 65, with 22 patients. 75% of them have anxiety, and 75% have mood disorders. 57% are also on Medicaid. Their average risk score is 1.12, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Mejia's median patient age at 67, with 63% women.
Dr. Mejia's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Mejia's Medicare patients by sex, 2024
- Women2963%
- Men1737%
Chronic conditions among Dr. Mejia's Medicare patients, 2024
- Anxiety75%
- Mood disorders75%
- High cholesterol61%
- High blood pressure52%
- Depression46%
- Arthritis43%
- Bipolar disorder33%
- Diabetes33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mejia's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women63%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sergio Mejia wrote 2,149 Medicare Part D claims in 2024
In 2024, Dr. Mejia wrote 2,149 Medicare Part D claims for 152 patients. 87% of them were for generic drugs. CMS names the drug for 1,993 of them, across 48 drugs with 11 or more claims each, at $599,575 in total drug cost. In 2023, CMS named 1,989 claims across 49 drugs.
Dr. Mejia's Part D claims by kind of drug, 2024
- Generic1,872 claims87%
- Brand-name277 claims13%
Dr. Mejia'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 Dr. Mejia's Part D claims, 2024
- Antipsychotics, patients 65 and over7%156 of 2,149 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: 1,9892024: 1,993No change
Drugs named by CMS: 48 in 2024, 49 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
How Dr. Sergio Mejia takes part in Medicare
Dr. Mejia accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Sergio Mejia received $12,296 in industry payments from 2016 to 2025
CMS Open Payments shows 258 general payments to Dr. Mejia from 16 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $2,725.
General payments to Dr. Mejia by program year, 2016 to 2025
General payments to Dr. Mejia by kind, 2016 to 2025
- Food and beverage$12,07298%
- Education$1231%
- Speaker and faculty fees$1001%
Companies that paid Dr. Mejia the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Sergio Mejia'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Dr. Sergio Mejia
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Sergio Mejia's NPI number?
Dr. Sergio Mejia's NPI number is 1932127214. It was assigned on July 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Sergio Mejia?
Dr. Sergio Mejia is a psychiatrist in Middletown, Connecticut. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Sergio Mejia practice?
Dr. Mejia practices at 28 Crescent St, Middletown, CT 06457. Dr. Mejia's primary practice is Middlesex Hospital in Middletown, Connecticut, part of Middlesex Health System.
What is Dr. Sergio Mejia's office phone number?
The practice phone on file for Dr. Mejia is (860) 344-6000.
What is Dr. Sergio Mejia's medical license number?
Dr. Mejia holds Connecticut license 024051.
Which hospitals is Dr. Sergio Mejia affiliated with?
Dr. Mejia practices at Middlesex Hospital in Middletown, Connecticut.
What medical group is Dr. Sergio Mejia part of?
Dr. Mejia is linked to Middlesex Health.
Does Dr. Sergio Mejia accept Medicare?
Yes. CMS data shows Dr. Mejia billed Medicare for 184 services in 2024, and Dr. Mejia accepts Medicare assignment.
How many Medicare patients does Dr. Sergio Mejia see?
CMS counts 46 Medicare patients who saw Dr. Mejia in 2024, with an average age of 63.
What services does Dr. Sergio Mejia bill to Medicare?
In 2024, Dr. Mejia's most billed Medicare services were office visit, established patient (99213) and office visit, established patient (99214).
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What drugs does Dr. Sergio Mejia prescribe most?
In 2024 Medicare Part D data, Dr. Mejia's most prescribed drugs by claims were Clonazepam, Alprazolam and Buspirone HCl.
Has Dr. Sergio Mejia received payments from drug or device companies?
CMS Open Payments shows $12,296 in general payments to Dr. Mejia from 16 companies from 2016 to 2025. The largest total came from Otsuka America Pharmaceutical, Inc.
How long has Dr. Sergio Mejia been practicing?
Dr. Mejia graduated from medical school in 1970, 56 years ago.
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