MARA R. HOLTON MD
NPI 1275677874
Urology in Annapolis, MD

Q: What is Mara Holton's NPI number?

The NPI number for Mara Holton is 1275677874. It was assigned to this individual provider in the NPPES registry on February 16, 2007.

Q: What is Mara Holton's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Q: When was this NPI record last updated?

The NPPES record for Mara Holton was last updated on June 12, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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 February 16, 2007PECOS EnrolledAccepts Medicare Assignment

600 RIDGELY AVE, SUITE 130, ANNAPOLIS, MD 21401(410) 246-8049(410) 266-0895 Get Directions Write a Review

NPPES record last updated: June 12, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Mara R. Holton Md NPPES

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

MARA R. HOLTON MD (NPI 1275677874) is an individual urology provider in Annapolis, Maryland, licensed in Maryland (D0066009) and active in the NPI registry since February 2007. She is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and is a graduate of Temple University School Of Medicine (2001).

NPPES Registry Identity

NPI1275677874

Entity TypeIndividualFemale

Primary Taxonomy208800000X

Provider Legal NameMARA R. HOLTONCredential: MD

Location Address600 RIDGELY AVE, SUITE 130Annapolis, MD 21401-1001

Mailing Address600 Ridgely Ave, Suite 130Annapolis, MD 21401-1001 · (410) 246-8049 · Fax (410) 266-0895

Phone(410) 246-8049

Fax(410) 266-0895

Sole ProprietorNo

Medical School CMSTemple University School Of MedicineGraduated 2001

Enumeration DateFebruary 16, 2007

Last NPPES UpdateJune 12, 2020

NPPES CertifiedJune 12, 2020

✔ NPI 1275677874 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians

Taxonomy Code208800000X

License✔ Licensed in MD · D0066009

Definition

A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

Also ListedSpecialistTaxonomy 174400000X · License D0066009 (MD)

600 RIDGELY AVE, Annapolis, MD 21401

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mara R. Holton 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 ID4385732163

PECOS Enrollment IDI20071112000481, I20080327000369

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.

Medicare Billing Reassignment

Medicare enrollment records show Mara Holton reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Anne Arundel Urology, PA

Same address

Urology

600 RIDGELY AVE STE 222&223
Annapolis, MD 21401

Reassigned Medicare billing, Maryland and District of Columbia enrollments
Also billed through NPI 1730365396 (District of Columbia)
37 clinicians in this Medicare group

NPI 1164426045 (410) 266-8049

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 23

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.

Detection test by nucleic acid for organism, amplified probe technique 87798

A nucleic acid detection test is a procedure to identify specific organisms in your body. This test uses an amplified probe technique, which magnifies the genetic material of the organism, making it easier to detect. It's a precise way to diagnose infections.

1,222 services84 patients

Urinalysis, manual test 81002

A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.

582 services435 patients

Ultrasound measurement of bladder capacity after voiding 51798

Ultrasound measurement of bladder capacity after voiding is a non-invasive test that uses sound waves to create images of your bladder. It's done after you've emptied your bladder to see if there's any leftover urine, which can help diagnose certain conditions.

424 services319 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.

365 services273 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.

161 services146 patients

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490

Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.

161 services88 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.

109 services109 patients

Diagnostic exam of bladder and urethra using an endoscope 52000

This procedure involves using a thin, flexible tube with a light, called an endoscope, to examine the bladder and urethra. It helps in identifying any abnormalities or issues that may be causing discomfort or other symptoms.

95 services93 patients

Detection test for candida species (yeast), amplified probe technique 87481

This test helps identify Candida, a type of fungus often present in the human body. An amplified probe technique is used, which enhances detection of the fungus in a sample. This method increases the accuracy of the test, helping to determine the best treatment.

94 services84 patients

Detection test by nucleic acid for vancomycin resistance strep (vre), amplified probe technique 87500

The detection test by nucleic acid for vancomycin-resistant strep (VRE) is a laboratory procedure. It uses an amplified probe technique to identify specific genetic material in bacteria. This helps determine if the bacteria are resistant to the antibiotic vancomycin.

94 services84 patients

Detection test by nucleic acid for staphylococcus aureus, methicillin resistant (mrsa bacteria), amplified probe technique 87641

A detection test by nucleic acid for MRSA bacteria uses an amplified probe technique. It's a lab procedure that identifies the presence of MRSA, a type of bacteria resistant to many antibiotics. This test helps in deciding the best treatment.

94 services84 patients

Detection test by nucleic acid for strep (streptococcus, group a), quantification 87652

A detection test by nucleic acid for Group A Strep is a diagnostic procedure that identifies the presence and quantity of streptococcus bacteria in your body. This test uses a sample, usually a throat swab, to detect the bacteria's genetic material. It helps in diagnosing infections like strep throat.

94 services84 patients

Detection test by nucleic acid for strep (streptococcus, group b), amplified probe technique 87653

A detection test by nucleic acid for Group B Strep uses an amplified probe technique. This test identifies the presence of Group B Strep bacteria in the body. It involves collecting a sample, usually a swab, which is then examined in a lab for the bacteria's genetic material.

94 services84 patients

Detection test by nucleic acid for organism, quantification 87799

A detection test by nucleic acid quantification is a lab procedure used to identify specific organisms in your body. It measures the amount of an organism's genetic material, helping to diagnose and monitor certain diseases.

94 services84 patients

Detection test by nucleic acid for staphylococcus aureus (bacteria), amplified probe technique 87640

A detection test for Staphylococcus aureus uses a method called the amplified probe technique. This method identifies the bacteria's unique genetic material, or nucleic acid, helping to confirm its presence. It's a highly accurate way to detect this type of bacteria.

93 services83 patients

Detection test by nucleic acid for trichomonas vaginalis (genital parasite), amplified probe technique 87661

This is a test to identify a common microscopic organism that can cause discomfort. The technique involves using a special probe to amplify the organism's genetic material, making it easier to detect. It's a simple, safe, and accurate procedure.

93 services83 patients

Principal care management services for a single high-risk disease, first 30 minutes of clinical staff time directed by health care professional, per calendar month 99426

Principal care management services focus on managing a single high-risk disease. This involves a health care professional directing clinical staff for the first 30 minutes each month. The aim is to monitor your health, coordinate care, and provide necessary support for your disease management.

64 services53 patients

Simple bladder irrigation and/or instillation 51700

Bladder irrigation and/or instillation is a process where a sterile solution is introduced into the bladder to cleanse it or deliver medication. This procedure helps manage certain bladder conditions, ensuring optimal bladder health.

54 services54 patients

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

44 services44 patients

Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 99439

Chronic Care Management services involve regular check-ins with healthcare professionals to manage two or more chronic conditions. It includes an additional 20 minutes of clinical staff time per month, directed by a healthcare professional, to ensure optimal health management.

43 services29 patients

Principal care management services for a single high-risk disease, each additional 30 minutes of clinical staff time directed by health care professional, per calendar month 99427

Principal Care Management (PCM) services focus on managing a single high-risk disease. It involves additional 30 minutes of clinical staff time per month, overseen by a healthcare professional. This includes monitoring your health, coordinating care, and developing a personalized treatment plan.

21 services18 patients

Complete ultrasound scan behind abdominal cavity 76770

A complete ultrasound scan behind the abdominal cavity is a non-invasive imaging procedure. It uses sound waves to create pictures of the structures and organs located at the back of your abdomen. It helps in diagnosing health conditions and monitoring ongoing treatments.

14 services13 patients

Limited ultrasound scan behind abdominal cavity 76775

A limited ultrasound scan behind the abdominal cavity is a non-invasive imaging method that helps visualize structures in the back of your abdomen. This procedure uses sound waves to create pictures of these areas, assisting in diagnosing certain conditions.

14 services14 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

Luminis Health Anne Arundel Medical Center, Inc

Acute Care Hospitals · Annapolis, MD

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number210023

Location2001 Medical ParkwayAnnapolis, MD 21401 · Anne Arundel County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21401 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

$75.47 typical visit price

range $19.60 – $149.17

Typical copayment $18.86 (range $4.90 – $37.29)

Most-billed visit code 99213

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

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Intermittent urinary catheter; straight tip, with or without coating (teflon, silicone, silicone elastomer, or hydrophilic, etc.), each A4351

DME-Orthotic Devices · category DF008N

6 suppliers33 claims6,980 services$1.69 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

SHAOQING ZHOU MD

Urology

600 RIDGELY AVE
ANNAPOLIS, MD 21401

Anne Arundel County (410) 266-8049

DR. KATHRYN JOAN EHMANN DDS

Dentist (General Practice)

600 RIDGELY AVE, SUITE 217
ANNAPOLIS, MD 21401

Anne Arundel County (410) 224-1105

DR. ROBERT CLEAVELAND MOORE M.D.

Surgery

600 RIDGELY AVE, SUITE222
ANNAPOLIS, MD 21401

Anne Arundel County (410) 266-5084

DR. RUTH KANOW WEINSTEIN PH.D.

Psychologist (Clinical)

600 RIDGELY AVE, SUITE 210
ANNAPOLIS, MD 21401

Anne Arundel County (410) 266-8555

SUSAN PARKHILL MACVEAN LCSW-C

Social Worker (Clinical)

600 RIDGELY AVE, SUITE 210
ANNAPOLIS, MD 21401

Anne Arundel County (410) 571-6780

JEREMY GREEN MD

Urology

600 RIDGELY AVE
ANNAPOLIS, MD 21401

Anne Arundel County (410) 266-8049

CHESAPEAKE OPEN MRI L L C

Radiology (Diagnostic Radiology)

600 RIDGELY AVE, SUITE 100
ANNAPOLIS, MD 21401

Anne Arundel County (410) 266-9715

ROBERT B. MEEK, III, M.D.PA.

Specialist

600 RIDGELY AVE, SUITE 110
ANNAPOLIS, MD 21401

Anne Arundel County (410) 573-9191

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 Mara Holton's NPI number?

The NPI number for Mara Holton is 1275677874. It was assigned to this individual provider in the NPPES registry on February 16, 2007.

Where is Mara Holton located?

Mara Holton practices at 600 Ridgely Ave Suite 130, Annapolis, MD 21401. The listed phone number is (410) 246-8049.

What is Mara Holton's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Is Mara Holton enrolled in Medicare?

Yes. Mara Holton 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.

Which organization bills Medicare for Mara Holton's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mara Holton reassigns Medicare benefits to Anne Arundel Urology, PA (Annapolis, MD). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mara Holton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Mara Holton affiliated with any hospitals?

According to CMS data, Mara Holton is affiliated with Johns Hopkins Hospital, The and Luminis Health Anne Arundel Medical Center, Inc.

When was this NPI record last updated?

The NPPES record for Mara Holton was last updated on June 12, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.