Dr. Merrill Ansher, MD
- Medicare services, 2024
- 1,840
- Medicare patients, 2024
- 828
- Part D claims, 2024
- 1,010
- MIPS score, 2024
- 82
- Hospital affiliations
- 2
- Practice address
- 10710 Charter Dr, Columbia, MD 21044
- Practice phone
- Call (410) 772-7345
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Howard County Gastrointestinal Diagnostic Center
Columbia, Maryland
Find Dr. Ansher'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. Merrill Ansher is a neurologist in Columbia, Maryland
Dr. Ansher practices at Howard County Gastrointestinal Diagnostic Center in Columbia, Maryland.
Dr. Ansher's NPI, 1932176294, was assigned on March 7, 2006. Dr. Ansher graduated from Johns Hopkins University School of Medicine in 1981. Dr. Ansher holds Maryland license D26976.
- NPI
- 1932176294NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0345251096
- NPI enumeration date
- March 7, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (410) 772-7345
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Merrill Ansher practices at Howard County Gastrointestinal Diagnostic Center in Columbia, Maryland
Dr. Ansher's primary practice is Howard County Gastrointestinal Diagnostic Center, at 10710 Charter Dr, Columbia, MD 21044 in Howard County. The practice phone is (410) 772-7345.
- Howard County Gastrointestinal Diagnostic Center10710 Charter Dr, Columbia, MD 21044 · Howard CountyPhone(410) 772-7345
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Merrill Ansher is affiliated with 5 sites of care and 2 medical groups
Dr. Ansher's primary practice is Howard County Gastrointestinal Diagnostic Center in Columbia, Maryland. Dr. Ansher is also affiliated with Johns Hopkins Howard County Medical Center. The medical group on file is ENTAA Care. Dmand AI also links Dr. Ansher to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Merrill Ansher's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ansher practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Howard County Gastrointestinal Diagnostic Center | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Merrill Ansher is one of 445 neurologists in Maryland
Neurology is Dr. Ansher's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Ansher is licensed in Maryland.
Specialties and state licenses
- Neurology, MarylandPrimary
Neurologists near Dr. Ansher
Counts of neurologists 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. Merrill Ansher billed Medicare for 1,840 services in 2024
CMS data shows 1,840 Medicare services from Dr. Ansher across 14 procedure codes in 2024, for 828 Medicare patients. Medicare paid $177,808 for them.
Dr. Ansher's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9822024: 9761%
- Tests and treatments
- 2023: 4142024: 4365%
- Other services
- 2023: 1622024: 428164%
Where Dr. Ansher's Medicare services took place, 2024
- In an office1,60187%
- In a facility23913%
Dr. Ansher compared with the Maryland median for neurologists, 2024
- Dr. Ansher
- Maryland median
- Medicare services
- 1,840vs 4913.7 times
- Medicare patients
- 828vs 2223.7 times
- Part D claims
- 768vs 2563.0 times
Medians across 394 neurologists in Maryland with Dmand AI profiles that report each measure.
Dr. Ansher'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. Ansher and other neurologists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Merrill Ansher treated 828 Medicare patients in 2024, average age 76
CMS counts 828 Medicare patients who saw Dr. Ansher in 2024. The largest group is 75 to 84, with 369 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.52, 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. Ansher's median patient age at 73, with 51% women.
Dr. Ansher's Medicare patients by age, 2024
Dr. Ansher's Medicare patients by sex, 2024
- Women44954%
- Men37946%
Chronic conditions among Dr. Ansher's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Mood disorders37%
- Diabetes36%
- Alzheimer's and dementia31%
- Chronic kidney disease31%
- Depression31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ansher'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
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Merrill Ansher wrote 1,010 Medicare Part D claims in 2024
In 2024, Dr. Ansher wrote 1,010 Medicare Part D claims for 239 patients. 86% of them were for generic drugs. CMS names the drug for 768 of them, across 20 drugs with 11 or more claims each, at $385,672 in total drug cost. In 2023, CMS named 670 claims across 20 drugs.
Dr. Ansher's Part D claims by kind of drug, 2024
- Generic870 claims86%
- Brand-name140 claims14%
Dr. Ansher'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. Ansher's Part D claims, 2024
- Antipsychotics, patients 65 and over1%15 of 1,010 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: 6702024: 76815%
Drugs named by CMS: 20 in 2024, 20 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. Merrill Ansher scored 82 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Ansher for performance year 2024, reported as part of a group. Dr. Ansher accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Ansher as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Ansher's MIPS scores, performance year 2024
- 82of 100Final score
- 65.1of 100Quality
- 98of 100Promoting Interoperability
- 40of 100Improvement Activities
- 77of 100Cost
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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Dr. Merrill Ansher received $12,777 in industry payments from 2016 to 2025
CMS Open Payments shows 761 general payments to Dr. Ansher from 54 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 94% of the total. Teva Pharmaceuticals USA, Inc. paid the most, $1,586.
General payments to Dr. Ansher by program year, 2016 to 2025
General payments to Dr. Ansher by kind, 2016 to 2025
- Food and beverage$12,03294%
- Speaker and faculty fees$4253%
- Education$3192%
Companies that paid Dr. Ansher the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Merrill Ansher graduated from Johns Hopkins University School of Medicine
Dr. Ansher graduated from Johns Hopkins University School of Medicine in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Merrill Ansher'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 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) |
| Industry payments | Open Payments (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 Dr. Merrill Ansher
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. Merrill Ansher's NPI number?
Dr. Merrill Ansher's NPI number is 1932176294. It was assigned on March 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Merrill Ansher?
Dr. Merrill Ansher is a neurologist in Columbia, Maryland. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Merrill Ansher practice?
Dr. Ansher practices at 10710 Charter Dr, Columbia, MD 21044. Dr. Ansher's primary practice is Howard County Gastrointestinal Diagnostic Center in Columbia, Maryland. Dmand AI also links Dr. Ansher to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Dr. Merrill Ansher's office phone number?
The practice phone on file for Dr. Ansher is (410) 772-7345.
What is Dr. Merrill Ansher's medical license number?
Dr. Ansher holds Maryland license D26976.
Which hospitals is Dr. Merrill Ansher affiliated with?
Dr. Ansher is affiliated with Johns Hopkins Howard County Medical Center. Dmand AI links Dr. Ansher to 1 more hospital.
What medical group is Dr. Merrill Ansher part of?
Dr. Ansher is linked to ENTAA Care. Dmand AI links Dr. Ansher to 1 more medical group.
Does Dr. Merrill Ansher accept Medicare?
Yes. CMS data shows Dr. Ansher billed Medicare for 1,840 services in 2024, and Dr. Ansher accepts Medicare assignment.
Does Dr. Merrill Ansher offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Ansher as offering telehealth services.
What is Dr. Merrill Ansher's MIPS score?
Dr. Ansher's MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Merrill Ansher see?
CMS counts 828 Medicare patients who saw Dr. Ansher in 2024, with an average age of 76.
What services does Dr. Merrill Ansher bill to Medicare?
In 2024, Dr. Ansher's most billed Medicare services were office visit, established patient (99215), medicare service (G2212) and nerve and brain test (95816).
Where did Dr. Merrill Ansher go to medical school?
Dr. Ansher graduated from Johns Hopkins University School of Medicine in 1981.
What drugs does Dr. Merrill Ansher prescribe most?
In 2024 Medicare Part D data, Dr. Ansher's most prescribed drugs by claims were Donepezil HCl, Levetiracetam and Lamotrigine.
Has Dr. Merrill Ansher received payments from drug or device companies?
CMS Open Payments shows $12,777 in general payments to Dr. Ansher from 54 companies from 2016 to 2025. The largest total came from Teva Pharmaceuticals USA, Inc.
How long has Dr. Merrill Ansher been practicing?
Dr. Ansher graduated from medical school in 1981, 45 years ago.
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