Dr. Lauren C. Mercer, MD
- Medicare services, 2024
- 1,772
- Medicare patients, 2024
- 242
- Part D claims, 2024
- 3,094
- Hospital affiliations
- 1
- Industry payments
- $6,229
- Practice address
- 60 Washington Ave Suite 203 Suite 203, Hamden, CT 06518-3272
- Practice phone
- Call (203) 288-0414
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Geriatric And Adult Psychiatry
Behavioral health practice · Hamden, Connecticut
Find Dr. Mercer'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.
Dr. Lauren C. Mercer is a psychiatrist in Hamden, Connecticut
Dr. Mercer practices at Geriatric And Adult Psychiatry in Hamden, Connecticut.
Dr. Mercer's NPI, 1922261874, was assigned on July 9, 2008. Dr. Mercer holds Connecticut license 52499.
- NPI
- 1922261874NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9638304819
- NPI enumeration date
- July 9, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (203) 288-0414
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lauren C. Mercer practices at Geriatric and Adult Psychiatry in Hamden, Connecticut
Dr. Mercer's primary practice is Geriatric and Adult Psychiatry, at 60 Washington Ave Suite 203 Suite 203, Hamden, CT 06518-3272. The practice phone is (203) 288-0414.
- Geriatric and Adult Psychiatry60 Washington Ave Suite 203 Suite 203, Hamden, CT 06518-3272Phone(203) 288-0414
Source: Dmand AI Affiliation Data
Dr. Lauren C. Mercer is affiliated with 2 sites of care and 1 medical group
Dr. Mercer's primary practice is Geriatric And Adult Psychiatry in Hamden, Connecticut. Dr. Mercer is also affiliated with Yale New Haven Hospital. The medical group on file is Geriatric & Adult Psychiatry.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Lauren C. Mercer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mercer practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Geriatric And Adult Psychiatry | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lauren C. Mercer is one of 828 psychiatrists in Connecticut
Psychiatry is Dr. Mercer's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Mercer is licensed in Connecticut.
Specialties and state licenses
- Psychiatry, ConnecticutPrimary
Psychiatrists near Dr. Mercer
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. Lauren C. Mercer billed Medicare for 1,772 services in 2024
CMS data shows 1,772 Medicare services from Dr. Mercer across 9 procedure codes in 2024, for 242 Medicare patients. Medicare paid $122,490 for them. Every service was in an office.
Dr. Mercer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0452024: 90114%
- Tests and treatments
- 2023: 1,0032024: 85914%
- Other services
- 2023: 112024: 129%
Dr. Mercer compared with the Connecticut median for psychiatrists, 2024
- Dr. Mercer
- Connecticut median
- Medicare services
- 1,772vs 11116.0 times
- Medicare patients
- 242vs 406.0 times
- Part D claims
- 2,942vs 14220.7 times
Medians across 886 psychiatrists in Connecticut with Dmand AI profiles that report each measure.
Dr. Mercer'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. Mercer and other psychiatrists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lauren C. Mercer treated 242 Medicare patients in 2024, average age 78
CMS counts 242 Medicare patients who saw Dr. Mercer in 2024. The largest group is 75 to 84, with 112 patients. 75% of them have anxiety, and 75% have depression. 21% are also on Medicaid. Their average risk score is 1.56, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Mercer's median patient age at 78, with 71% women.
Dr. Mercer's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Mercer's Medicare patients by sex, 2024
- Women17673%
- Men6627%
Chronic conditions among Dr. Mercer's Medicare patients, 2024
- Anxiety75%
- Depression75%
- High blood pressure75%
- High cholesterol75%
- Mood disorders75%
- Arthritis55%
- Alzheimer's and dementia35%
- Osteoporosis29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mercer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 78
Patient panel by sex, all payers
- Women71%
- Men26%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lauren C. Mercer wrote 3,094 Medicare Part D claims in 2024
In 2024, Dr. Mercer wrote 3,094 Medicare Part D claims for 427 patients. 96% of them were for generic drugs. CMS names the drug for 2,942 of them, across 40 drugs with 11 or more claims each, at $173,006 in total drug cost. In 2023, CMS named 3,068 claims across 42 drugs.
Dr. Mercer's Part D claims by kind of drug, 2024
- Generic2,973 claims96%
- Brand-name121 claims4%
Dr. Mercer'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. Mercer's Part D claims, 2024
- Antipsychotics, patients 65 and over13%404 of 3,094 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: 3,0682024: 2,9424%
Drugs named by CMS: 40 in 2024, 42 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
Dr. Lauren C. Mercer offers telehealth to Medicare patients
Dr. Mercer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Mercer as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Lauren C. Mercer received $6,229 in industry payments from 2016 to 2025
CMS Open Payments shows 295 general payments to Dr. Mercer from 19 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Lundbeck LLC paid the most, $1,397.
General payments to Dr. Mercer by program year, 2016 to 2025
Companies that paid Dr. Mercer 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. Lauren C. Mercer'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 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. Lauren C. Mercer
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. Lauren C. Mercer's NPI number?
Dr. Lauren C. Mercer's NPI number is 1922261874. It was assigned on July 9, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Lauren C. Mercer?
Dr. Lauren C. Mercer is a psychiatrist in Hamden, Connecticut. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Lauren C. Mercer practice?
Dr. Mercer practices at 60 Washington Ave Suite 203 Suite 203, Hamden, CT 06518-3272. Dr. Mercer's primary practice is Geriatric And Adult Psychiatry in Hamden, Connecticut.
What is Dr. Lauren C. Mercer's office phone number?
The practice phone on file for Dr. Mercer is (203) 288-0414.
What is Dr. Lauren C. Mercer's medical license number?
Dr. Mercer holds Connecticut license 52499.
Which hospitals is Dr. Lauren C. Mercer affiliated with?
Dr. Mercer is affiliated with Yale New Haven Hospital.
What medical group is Dr. Lauren C. Mercer part of?
Dr. Mercer is linked to Geriatric & Adult Psychiatry.
Does Dr. Lauren C. Mercer accept Medicare?
Yes. CMS data shows Dr. Mercer billed Medicare for 1,772 services in 2024, and Dr. Mercer accepts Medicare assignment.
Does Dr. Lauren C. Mercer offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Mercer as offering telehealth services.
How many Medicare patients does Dr. Lauren C. Mercer see?
CMS counts 242 Medicare patients who saw Dr. Mercer in 2024, with an average age of 78.
Show 4 more questionsShow fewer questions
What services does Dr. Lauren C. Mercer bill to Medicare?
In 2024, Dr. Mercer's most billed Medicare services were office visit, established patient (99213), psychiatric service (90833) and psychiatric service (90834).
What drugs does Dr. Lauren C. Mercer prescribe most?
In 2024 Medicare Part D data, Dr. Mercer's most prescribed drugs by claims were Escitalopram Oxalate, Lorazepam and Alprazolam.
Has Dr. Lauren C. Mercer received payments from drug or device companies?
CMS Open Payments shows $6,229 in general payments to Dr. Mercer from 19 companies from 2016 to 2025. The largest total came from Lundbeck LLC.
How long has Dr. Lauren C. Mercer been practicing?
Dr. Mercer graduated from medical school in 2008, 18 years ago.
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