Dr. Daniel T. Merck, MD
- Medicare services, 2022
- 462
- Part D claims, 2022
- 1,869
- Industry payments
- $14
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 3111 Professional Dr, Auburn, CA 95603
- Practice phone
- Call (530) 885-5618
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Regents Of The University Of Ca
Primary care practice · Auburn, California
Find Dr. Merck'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. Daniel T. Merck is an internist in Fairfield, California
Dr. Merck practices at Regents Of The University Of Ca in Auburn, California.
Dr. Merck's NPI, 1750300067, was assigned on July 18, 2006. Dr. Merck graduated from UC San Diego School of Medicine in 1995. Dr. Merck holds Connecticut license AO62952.
- NPI
- 1750300067NPI Registry (opens in a new tab)
- NPI enumeration date
- July 18, 2006
- NPI status
- Active
- Practice phone
- (530) 885-5618
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Daniel T. Merck practices in Auburn and Fairfield
Dr. Merck's primary practice is Regents of the University of Ca, at 3111 Professional Dr, Auburn, CA 95603. The practice phone is (530) 885-5618. The NPI Registry lists Dr. Merck's practice address as 4830 Business Center Dr, Fairfield, CA 94534.
- Regents of the University of CaPrimary3111 Professional Dr, Auburn, CA 95603Phone(530) 885-5618
- NPI Registry address4830 Business Center Dr, Fairfield, CA 94534 · Solano CountyPhone(530) 885-5618
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Daniel T. Merck is affiliated with 1 site of care and 1 medical group
Dr. Merck's primary practice is Regents Of The University Of Ca in Auburn, California. The medical group on file is UC Davis Medical Group.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Daniel T. Merck's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Merck practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Regents Of The University Of Ca | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Daniel T. Merck is one of 16,751 internists in California
Internal medicine is Dr. Merck's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Merck is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Merck's licenses on file in 2 states: Connecticut and California.
Specialties and state licenses
- Internal medicine, ConnecticutPrimary
- California license
Internists near Dr. Merck
Counts of internists 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. Daniel T. Merck billed Medicare for 462 services in 2022
CMS data shows 462 Medicare services from Dr. Merck across 9 procedure codes in 2022. Medicare paid $26,687 for them. Every service was in an office.
Dr. Merck's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 1,1562022: 40465%
- Tests and treatments
- 2021: 1192022: 3471%
- Other services
- 2021: 1052022: 2477%
Dr. Merck compared with the California median for internists, 2022
- Dr. Merck
- California median
- Medicare services
- 462vs 36128% above
- Part D claims
- 1,869vs 4214.4 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Merck's most billed Medicare procedure codes, 2022
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. Merck and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Daniel T. Merck's patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Dr. Merck's median patient age at 73, with 17% women.
Dr. Merck's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women17%
- Men81%
Source: Dmand AI Patient Panel Data
Dr. Daniel T. Merck wrote 1,869 Medicare Part D claims in 2022
In 2022, Dr. Merck wrote 1,869 Medicare Part D claims. They cover 47 drugs, with $90,136 in total drug cost. In 2021, CMS named 2,529 claims across 60 drugs.
Dr. Merck's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 2,5292022: 1,86926%
Drugs named by CMS: 47 in 2022, 60 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Daniel T. Merck received $14 in industry payments from 2016 to 2018
CMS Open Payments shows 3 general payments to Dr. Merck from 2 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 100% of the total. Eli Lilly and Company paid the most, $11.
General payments to Dr. Merck by program year, 2016 to 2018
Companies that paid Dr. Merck the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Daniel T. Merck has 1 award and honors on record
Dmand AI lists 1 award for Dr. Merck, most recently CMS Stage 1 EHR in 2012.
Awards and honors for Dr. Merck
- 2012
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Daniel T. Merck graduated from UC San Diego School of Medicine
Dr. Merck graduated from UC San Diego School of Medicine in 1995.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Daniel T. Merck accepts plans from 5 insurance carriers
Dr. Merck is in network with 5 carriers, including United Healthcare, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 4. Check the plan with the practice before a visit.
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Elevance
- HCSC
- Blue Cross and Blue Shield of Kansas City
Plan types Dr. Merck accepts, by number of carriers
- PPO4
- Medicare3
- HMO2
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Daniel T. Merck'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 Dr. Daniel T. Merck
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. Daniel T. Merck's NPI number?
Dr. Daniel T. Merck's NPI number is 1750300067. It was assigned on July 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Daniel T. Merck?
Dr. Daniel T. Merck is an internist in Fairfield, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Daniel T. Merck practice?
Dr. Merck practices at 3111 Professional Dr, Auburn, CA 95603. Dr. Merck also practices at 4830 Business Center Dr, Fairfield, CA 94534. Dr. Merck's primary practice is Regents Of The University Of Ca in Auburn, California.
What is Dr. Daniel T. Merck's office phone number?
The practice phone on file for Dr. Merck is (530) 885-5618.
What is Dr. Daniel T. Merck's medical license number?
Dr. Merck holds Connecticut license AO62952, one of the licenses on file in 2 states.
Which states has Dr. Daniel T. Merck been licensed in?
Dmand AI has state licenses on file for Dr. Merck in Connecticut and California (1997 to 2027).
What medical group is Dr. Daniel T. Merck part of?
Dr. Merck is linked to UC Davis Medical Group.
Does Dr. Daniel T. Merck accept Medicare?
Yes. CMS data shows Dr. Merck billed Medicare for 462 services in 2022.
Is Dr. Daniel T. Merck board certified?
Yes. Dr. Merck is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Daniel T. Merck bill to Medicare?
In 2022, Dr. Merck's most billed Medicare services were office visit, established patient (99214), care management and other visits (99443) and office visit, new patient (99204).
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Where did Dr. Daniel T. Merck go to medical school?
Dr. Merck graduated from UC San Diego School of Medicine in 1995.
What drugs does Dr. Daniel T. Merck prescribe most?
In 2022 Medicare Part D data, Dr. Merck's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Amlodipine Besylate.
Has Dr. Daniel T. Merck received payments from drug or device companies?
CMS Open Payments shows $14 in general payments to Dr. Merck from 2 companies from 2016 to 2018. The largest total came from Eli Lilly and Company.
How long has Dr. Daniel T. Merck been practicing?
Dr. Merck graduated from medical school in 1995, 31 years ago.
What insurance does Dr. Daniel T. Merck accept?
Dr. Merck is in network with 5 carriers, including United Healthcare, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 4. Check the plan with the practice before a visit.
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