Dr. Andrew David Merkin, MD
- Medicare services, 2024
- 94
- Medicare patients, 2024
- 20
- Part D claims, 2024
- 2,791
- Industry payments
- $123
- Affiliated sites
- 1
- Practice address
- 3910 Brookside Drive Ste 200, Tyler, TX 75701
- Practice phone
- Call (903) 266-7900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Clinical Pathology Laboratories - Tyler Brookside
Clinical Lab - Full Service · Tyler, Texas
Find Dr. Merkin'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. Andrew David Merkin is an internist in Tyler, Texas
Dr. Merkin practices at Clinical Pathology Laboratories - Tyler Brookside in Tyler, Texas.
Dr. Merkin's NPI, 1831144534, was assigned on May 23, 2006. Dr. Merkin graduated from UTMB Health in 1979. Dr. Merkin holds Texas license F4278.
- NPI
- 1831144534NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0840471660
- NPI enumeration date
- May 23, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (903) 266-7900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Andrew David Merkin practices at Clinical Pathology Laboratories - Tyler Brookside in Tyler, Texas
Dr. Merkin's primary practice is Clinical Pathology Laboratories - Tyler Brookside, at 3910 Brookside Drive Ste 200, Tyler, TX 75701. The practice phone is (903) 266-7900.
- Clinical Pathology Laboratories - Tyler Brookside3910 Brookside Drive Ste 200, Tyler, TX 75701Phone(903) 266-7900
Source: Dmand AI Affiliation Data
Dr. Andrew David Merkin is affiliated with 1 site of care
Dr. Merkin's primary practice is Clinical Pathology Laboratories - Tyler Brookside in Tyler, Texas.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Andrew David Merkin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Merkin practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Clinical Pathology Laboratories - Tyler Brookside | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Andrew David Merkin is one of 8,437 internists in Texas
Internal medicine is Dr. Merkin's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Merkin is board certified in internal medicine by the American Board of Internal Medicine. Dr. Merkin is licensed in Texas.
Specialties and state licenses
- Internal medicine, TexasPrimary
Clinical focus
Dmand AI lists chronic diabetes and chronic hypertension among the conditions Dr. Merkin treats.
Internists near Dr. Merkin
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. Andrew David Merkin billed Medicare for 94 services in 2024
CMS data shows 94 Medicare services from Dr. Merkin across 1 procedure code in 2024, all of them office visits, for 20 Medicare patients. Medicare paid $9,358 for them. Every service was in an office.
Dr. Merkin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2672024: 9465%
- Lab and pathology
- 2023: 552024: 0100%
- Tests and treatments
- 2023: 212024: 0100%
- Surgery
- 2023: 212024: 0100%
Dr. Merkin compared with the Texas median for internists, 2024
- Dr. Merkin
- Texas median
- Medicare services
- 94vs 53983% below
- Medicare patients
- 20vs 19089% below
- Part D claims
- 2,304vs 2898.0 times
Medians across 7,794 internists in Texas with Dmand AI profiles that report each measure.
Dr. Merkin'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.
Need commercial claims for Dr. Merkin?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Merkin and other internists in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Andrew David Merkin treated 20 Medicare patients in 2024, average age 72
CMS counts 20 Medicare patients who saw Dr. Merkin in 2024. 75% of them have high blood pressure. Their average risk score is 1.20, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Merkin's median patient age at 71, with 55% women.
Chronic conditions among Dr. Merkin's Medicare patients, 2024
- High blood pressure75%
Share of Medicare patients with each condition. A patient can have several.
Dr. Merkin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Andrew David Merkin wrote 2,791 Medicare Part D claims in 2024
In 2024, Dr. Merkin wrote 2,791 Medicare Part D claims for 114 patients. 91% of them were for generic drugs. CMS names the drug for 2,304 of them, across 65 drugs with 11 or more claims each, at $93,193 in total drug cost. In 2023, CMS named 2,731 claims across 74 drugs.
Dr. Merkin's Part D claims by kind of drug, 2024
- Generic2,537 claims91%
- Brand-name234 claims8%
- Other20 claims1%
Dr. Merkin'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. Merkin's Part D claims, 2024
- Opioids21%586 of 2,791 claims
- Antibiotics8%229 of 2,791 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: 2,7312024: 2,30416%
Drugs named by CMS: 65 in 2024, 74 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. Andrew David Merkin takes part in Medicare
Dr. Merkin 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. Andrew David Merkin received $123 in industry payments from 2016 to 2018
CMS Open Payments shows 3 general payments to Dr. Merkin from 3 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 100% of the total. Bristol-Myers Squibb Company paid the most, $89.
General payments to Dr. Merkin by program year, 2016 to 2018
Companies that paid Dr. Merkin 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. Andrew David Merkin graduated from UTMB Health
Dr. Merkin graduated from UTMB Health in 1979.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Andrew David Merkin accepts plans from 16 insurance carriers
Dr. Merkin is in network with 16 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and HCSC. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Aetna
- Alliant Health Plans
- Blue Cross Blue Shield of Massachusetts
- Elevance
- Humana
- +8 more carriersWith a free account
Plan types Dr. Merkin accepts, by number of carriers
- PPO10
- HMO9
- Medicare5
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Andrew David Merkin'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) |
| 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. Andrew David Merkin
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. Andrew David Merkin's NPI number?
Dr. Andrew David Merkin's NPI number is 1831144534. It was assigned on May 23, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Andrew David Merkin?
Dr. Andrew David Merkin is an internist in Tyler, Texas. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Andrew David Merkin practice?
Dr. Merkin practices at 3910 Brookside Drive Ste 200, Tyler, TX 75701. Dr. Merkin's primary practice is Clinical Pathology Laboratories - Tyler Brookside in Tyler, Texas.
What is Dr. Andrew David Merkin's office phone number?
The practice phone on file for Dr. Merkin is (903) 266-7900.
What is Dr. Andrew David Merkin's medical license number?
Dr. Merkin holds Texas license F4278.
Does Dr. Andrew David Merkin accept Medicare?
Yes. CMS data shows Dr. Merkin billed Medicare for 94 services in 2024, and Dr. Merkin accepts Medicare assignment.
How many Medicare patients does Dr. Andrew David Merkin see?
CMS counts 20 Medicare patients who saw Dr. Merkin in 2024, with an average age of 72.
Is Dr. Andrew David Merkin board certified?
Yes. Dr. Merkin is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Andrew David Merkin bill to Medicare?
In 2024, Dr. Merkin's most billed Medicare services were office visit, established patient (99214).
Where did Dr. Andrew David Merkin go to medical school?
Dr. Merkin graduated from UTMB Health in 1979.
Show 4 more questionsShow fewer questions
What drugs does Dr. Andrew David Merkin prescribe most?
In 2024 Medicare Part D data, Dr. Merkin's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Alprazolam and Oxycodone-Acetaminophen.
Has Dr. Andrew David Merkin received payments from drug or device companies?
CMS Open Payments shows $123 in general payments to Dr. Merkin from 3 companies from 2016 to 2018. The largest total came from Bristol-Myers Squibb Company.
How long has Dr. Andrew David Merkin been practicing?
Dr. Merkin graduated from medical school in 1979, 47 years ago.
What insurance does Dr. Andrew David Merkin accept?
Dr. Merkin is in network with 16 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and HCSC. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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