Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MERRILL ANSHER MD
NPI 1932176294
Psychiatry & Neurology - Neurology in Columbia, MD

Q: What is Merrill Ansher's NPI number?

The NPI number for Merrill Ansher is 1932176294. It was assigned to this individual provider in the NPPES registry on March 7, 2006.

Q: What is Merrill Ansher's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Q: When was this NPI record last updated?

The NPPES record for Merrill Ansher was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 07, 2006PECOS Enrolled

83.06/100

CMS Quality Rating

11055 LITTLE PATUXENT PKWY, STE 209, COLUMBIA, MD 21044(410) 884-0191(510) 997-2607 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Merrill Ansher Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MERRILL ANSHER MD (NPI 1932176294) is an individual neurology provider in Columbia, Maryland, licensed in Maryland (D26976) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and is a graduate of Johns Hopkins University School Of Medicine (1981).

NPPES Registry Identity

NPI1932176294

Entity TypeIndividualMale

Primary Taxonomy2084N0400X

Provider Legal NameMERRILL ANSHERCredential: MD

Location Address11055 LITTLE PATUXENT PKWY, STE 209Columbia, MD 21044

Mailing Address11055 Little Patuxent Pkwy, Ste 209Columbia, MD 21044 · (410) 884-0191 · Fax (510) 997-2607

Phone(410) 884-0191

Fax(510) 997-2607

Sole ProprietorNo

Medical School CMSJohns Hopkins University School Of MedicineGraduated 1981

Enumeration DateMarch 7, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1932176294 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians

Taxonomy Code2084N0400X

License✔ Licensed in MD · D26976

Definition

A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.

11055 LITTLE PATUXENT PKWY, Columbia, MD 21044

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Merrill Ansher Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID345251096

PECOS Enrollment IDI20060510000118

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 15

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

507 services346 patients

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

428 services203 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

229 services229 patients

Measurement of brain wave activity (eeg), awake and drowsy 95816

Measurement of brain wave activity, also known as an EEG, is a non-invasive test that records electrical patterns in your brain. This procedure is done when you're awake and drowsy to understand how your brain functions during different states of consciousness.

218 services198 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

135 services124 patients

Needle measurement of electrical activity in arm or leg muscles, complete study 95886

This procedure, known as an electromyography (EMG), involves inserting a small needle into your arm or leg muscles to measure their electrical activity. This complete study helps diagnose issues with nerves or muscles, providing valuable data for your treatment plan.

95 services76 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

55 services54 patients

Nerve conduction, 7-8 studies 95910

Nerve conduction studies involve testing the speed and strength of signals traveling through your nerves. This helps doctors identify nerve damage. In a 7-8 study procedure, 7-8 specific nerves are tested. You may feel a mild, brief tingling or shock during the test.

28 services27 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

28 services28 patients

Measurement of brain wave activity (eeg), awake and drowsy 95816

25 services25 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

22 services22 patients

Measurement of brain wave activity (eeg), in coma or asleep 95822

The measurement of brain wave activity, also known as an EEG, is a non-invasive test that records electrical patterns in your brain. This is done when you're asleep or in a coma, to help understand brain function and identify any abnormalities.

21 services17 patients

Nerve conduction, 5-6 studies 95909

Nerve conduction studies involve testing the speed and strength of signals traveling through your nerves. This helps identify any nerve damage or dysfunction. For 5-6 studies, this means multiple nerves will be tested. Small electrodes are placed on your skin to send and receive signals, causing minimal discomfort.

21 services21 patients

Nerve conduction, 3-4 studies 95908

Nerve conduction studies are tests that measure how well your nerves are working. In a 3-4 studies procedure, electrical signals are sent through 3-4 nerves. The speed and strength of the signal's travel is recorded to detect any nerve damage or dysfunction.

17 services17 patients

Nerve conduction, 9-10 studies 95911

Nerve conduction studies involve sending small electrical shocks through the skin to measure how quickly nerves transmit signals. This helps detect nerve damage. 9-10 studies mean this process will be repeated on different nerves to gather comprehensive data.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Johns Hopkins Hospital, The

Acute Care Hospitals · Baltimore, MD

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number210009

Location600 North Wolfe StreetBaltimore, MD 21287 · Baltimore City County

Emergency services Birthing friendly

Johns Hopkins Howard County Medical Center

Acute Care Hospitals · Columbia, MD

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number210048

Location5755 Cedar LaneColumbia, MD 21044 · Howard County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21044 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$139.05 typical visit price

range $60.73 – $183.44

Typical copayment $34.76 (range $15.18 – $45.86)

Most-billed visit code 99204

Established Patient

$106.59 typical visit price

range $19.60 – $149.17

Typical copayment $26.64 (range $4.90 – $37.29)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

83.06/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

68.66

Promoting Interoperability

Improvement Activities

Cost

76.55

Reported Quality Measures

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…

100%507 patients5/55-star benchmark: 100%

Preventive Care and Screening: Screening for Depression and Follow-Up Plan

Percentage of patients aged 12 years and older screened for depression on the date of the encounter using an age appropriate standardized depression screening tool AND if positive, a follow-up plan is documented on the date of the positive screen

100%377 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LAWRENCE HYMAN AND ASSOCIATES

Psychiatry & Neurology (Psychiatry)

11055 LITTLE PATUXENT PKWY, SUITE 210
COLUMBIA, MD 21044

Howard County (410) 997-8847

DR. THAIS DORRYNNE WEIBEL MD

Psychiatry & Neurology (Neurology)

11055 LITTLE PATUXENT PKWY, SUITE 109
COLUMBIA, MD 21044

Howard County (410) 977-1928

ANGELA M. KOPACK MD

Internal Medicine (Infectious Disease)

11055 LITTLE PATUXENT PKWY, SUITE 209
COLUMBIA, MD 21044

Howard County (410) 884-1311

DR. KATHERINE MANSFIELD HOULE PSY.D., M.S.W., B.S.

Social Worker (Clinical)

11055 LITTLE PATUXENT PKWY, SUITE 201
COLUMBIA, MD 21044

Howard County (202) 680-4080

DR. GARY C. PRADA M.D.

Internal Medicine

11055 LITTLE PATUXENT PKWY, SUITE 104
COLUMBIA, MD 21044

Howard County (410) 740-2900

MARC L CHAIKEN, M.D., P.A.

Specialist

11055 LITTLE PATUXENT PKWY, SUITE 106
COLUMBIA, MD 21044

Howard County (410) 730-6673

CENTERS FOR ADVANCED ORTHOPAEDICS, LLC

Orthopaedic Surgery

11055 LITTLE PATUXENT PKWY, SUITE L-1
COLUMBIA, MD 21044

Howard County (410) 740-7030

DIANE A. GASPAR P.A. - C.

Physician Assistant

11055 LITTLE PATUXENT PKWY, SUITE 106
COLUMBIA, MD 21044

Howard County (410) 730-6673

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Merrill Ansher's NPI number?

The NPI number for Merrill Ansher is 1932176294. It was assigned to this individual provider in the NPPES registry on March 7, 2006.

Where is Merrill Ansher located?

Merrill Ansher practices at 11055 Little Patuxent Pkwy Ste 209, Columbia, MD 21044. The listed phone number is (410) 884-0191.

What is Merrill Ansher's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Merrill Ansher enrolled in Medicare?

Yes. Merrill Ansher is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Merrill Ansher affiliated with any hospitals?

According to CMS data, Merrill Ansher is affiliated with Johns Hopkins Hospital, The and Johns Hopkins Howard County Medical Center.

When was this NPI record last updated?

The NPPES record for Merrill Ansher was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.