MR. WILLIAM R WALLS LCSW C
NPI 1093861502
Social Worker in Catonsville, MD

NPI Status: Active since January 26, 2007

Contact Information

10 WINTERS LANE
THE RENAISSANCE CENTER
CATONSVILLE, MD
ZIP 21228
Phone: (410) 747-3360
Fax: (410) 747-3364

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  • Individual
  • Male
  • Years of Experience 27
  • Social Worker
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About WILLIAM WALLS

This page provides the complete NPI Profile along with additional information for William Walls, a provider established in Catonsville, Maryland with a medical specialization in Social Worker and more than 27 years of experience. The healthcare provider is registered in the NPI registry with number 1093861502 assigned on January 2007. The practitioner's primary taxonomy code is 104100000X with license number 11482 (MD). The provider is registered as an individual and his NPI record was last updated 18 years ago.

NPI
1093861502
Provider Name
MR. WILLIAM R WALLS LCSW C
Gender
Male
Entity Type
Individual
Location Address
10 WINTERS LANE THE RENAISSANCE CENTER CATONSVILLE, MD 21228
Location Phone
(410) 747-3360
Location Fax
(410) 747-3364
Mailing Address
10 WINTERS LANE THE RENAISSANCE CENTER CATONSVILLE, MD 21228
Mailing Phone
(410) 747-3360
Mailing Fax
(410) 747-3364
Medical School Name
OTHER
Graduation Year
1999
Is Sole Proprietor?
No
Enumeration Date
01-26-2007
Last Update Date
07-08-2007
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A social worker like William Walls helps patients solve and cope with problems in their everyday lives, diagnoses and treats mental, behavioral, and emotional problems. Social workers help in wide range of situations, such as adopting a child, illness, divorce, or unemployment.

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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Social Worker

Taxonomy Code
104100000X
Type
Behavioral Health & Social Service Providers
License No.
11482
License State
MD
Taxonomy Description
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.

Medicare Participation & PECOS Enrollment Status

William Walls is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

William Walls is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging and Durable Medical Equipment (DME).

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 9436171121

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20051221000996, I20160226001325

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): No

  • Eligible to Order or Refer Power Mobility Devices: No

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Psychiatric diagnostic evaluation

A psychiatric diagnostic evaluation is a thorough assessment used to identify any mental health conditions you may have. It involves a detailed discussion about your symptoms, thoughts, feelings and behavior patterns. Your medical history and family's mental health history are also considered.

This service was performed 18 times for 18 patients

Psychotherapy, 1 hour

Psychotherapy is a therapeutic interaction or treatment between a trained professional and a patient. In a 1-hour session, you'll talk about your feelings, thoughts, and behaviors to help identify and manage mental health issues. This process aids in personal growth, healing, and improved well-being.

This service was performed 581 times for 36 patients

Reviews for MR. WILLIAM R WALLS LCSW C

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1093861502
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
20183166250
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 0 + 1 + 8 + 3 + 1 + 6 + 6 + 2 + 5 + 0 + 24 = 58
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
60 - 58 = 22

The NPI number 1093861502 is valid because the calculated check digit 2 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 3 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1417986654MRS. CARLA J DEBNAM MS NCC LCPC
Individual
Counselor10 WINTERS LANE THE RENAISSANCE CENTER
CATONSVILLE, MD 21228
(410) 747-3360
1861424053MR. NORMAN HORN MS NCC LCPC
Individual
Counselor10 WINTERS LANE THE RENAISSANCE CENTER
CATONSVILLE, MD 21228
(410) 747-3360
1285787911MRS. ROSALIND GREEN BARNES LCSWC
Individual
Social Worker10 WINTERS LANE THE RENAISSANCE CENTER
CATONSVILLE, MD 21228
(410) 747-3360

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1093861502, enumerated in the NPI registry as an "individual" on January 26, 2007

The provider is located at 10 Winters Lane The Renaissance Center Catonsville, Md 21228 and the phone number is (410) 747-3360

The provider's speciality is Social Worker with taxonomy code 104100000X

The provider has more than 27 years of experience.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging and Durable Medical Equipment (DME).

The most common procedures or services performed by this practitioner are: Psychiatric diagnostic evaluation and Psychotherapy, 1 hour.

This NPI record was last updated on January 26, 2007. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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