WILLIAM ROBERT CLARK MD
NPI 1649665019
Psychiatry & Neurology - Child & Adolescent Psychiatry in Wpafb, OH

NPI Status: Active since April 02, 2015

Contact Information

4881 SUGAR MAPLE DR
WPAFB, OH
ZIP 45433
Phone: (937) 257-6877

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  • Individual
  • Male
  • Years of Experience 11
  • Psychiatry & Neurology
  • Child & Adolescent Psychiatry
  • May Accept Medicare Approved Payment
  • PECOS Enrolled

About WILLIAM CLARK

This page provides the complete NPI Profile along with additional information for William Clark, a provider established in Wpafb, Ohio with a medical specialization in Psychiatry & Neurology, focusing in child & adolescent psychiatry and more than 11 years of experience. The healthcare provider is registered in the NPI registry with number 1649665019 assigned on April 2015. The practitioner's primary taxonomy code is 2084P0804X with license number 35.132272 (OH). The provider is registered as an individual and his NPI record was last updated May 2026.

NPI
1649665019
Provider Name
WILLIAM ROBERT CLARK MD
Gender
Male
Entity Type
Individual
Location Address
4881 SUGAR MAPLE DR WPAFB, OH 45433
Location Phone
(937) 257-6877
Mailing Address
4881 SUGAR MAPLE DR WPAFB, OH 45433
Mailing Phone
(937) 257-6877
Medical School Name
OTHER
Graduation Year
2015
Is Sole Proprietor?
No
Enumeration Date
04-02-2015
Last Update Date
05-11-2026
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Location Map

Secondary Locations

  • 1 Childrens Plz
    Dayton, OH 45404
    (937) 641-4040
  • 860 Valley St
    Dayton, OH 45404
    (937) 641-3060
  • 3300 W Tech Blvd
    Miamisburg, OH 45342
    (937) 641-4040

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

Psychiatry & Neurology Child & Adolescent Psychiatry

Taxonomy Code
2084P0804X
Type
Allopathic & Osteopathic Physicians
License No.
35.132272
License State
OH
Taxonomy Description
Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
12084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

35.132272 (OH)

Medicare Participation & PECOS Enrollment Status

William Clark is registered with Medicare but maybe doesn't accept claims assignment. If you are a Medicare beneficiary call and confirm with the provider before seeking any services.

William Clark 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, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

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: 8022322718

    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: I20260403001888

    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? Maybe

    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): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Reviews for WILLIAM ROBERT CLARK MD

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1649665019, we treat the final digit (9) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
6
Unchanged
Pos 3
4
Doubled → 8
Pos 4
9
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
6
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
0
Unchanged
Pos 9
1
Doubled → 2
Check
9
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 4 → 8 6 → 12 → 3 5 → 10 → 1 1 → 2

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 6 + 8 + 9 + 1 + 2 + 6 + 1 + 0 + 0 + 2 + 24 = 61

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1649665019.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Podiatrist (Foot & Ankle Surgery)
4881 SUGAR MAPLE DR, ORTHOPEDICS AND PODIATRY
WRIGHT PATTERSON AFB, OH 45433
Dentist (General Practice)
4881 SUGAR MAPLE DR, 48DS
WPAFB, OH 45433
Pediatrics
4881 SUGAR MAPLE DR, 88 MDG/SGH2
WRIGHT PATTERSON AFB, OH 45433
Internal Medicine (Infectious Disease)
4881 SUGAR MAPLE DR, 88 MDOS
WPAFB, OH 45433
Physical Therapist
4881 SUGAR MAPLE DR, 88MDG/SGCP
WRIGHT PATTERSON AFB, OH 45433
Social Worker
4881 SUGAR MAPLE DR, 5TH FLOOR
WPAFB, OH 45433
Military Hospital (Military General Acute Care Hospital)
4881 SUGAR MAPLE DR
WRIGHT PATTERSON AFB, OH 45433
Optometrist
4881 SUGAR MAPLE DR, 88MDG/SGPE
WRIGHT PATTERSON AFB, OH 45433
Emergency Medicine
4881 SUGAR MAPLE DR
WRIGHT PATTERSON AFB, OH 45433
Dentist (Endodontics)
4881 SUGAR MAPLE DR, 88MDG/SGDD
WRIGHT PATTERSON AFB, OH 45433
Occupational Therapist
4881 SUGAR MAPLE DR, 88MDG/SGCPZ
WRIGHT PATTERSON AFB, OH 45433
Internal Medicine
4881 SUGAR MAPLE DR, 88TH MDOS/SGOMI
WRIGHT PATTERSON AFB, OH 45433
Family Medicine
4881 SUGAR MAPLE DR, 88 MDG/SGHJ
WRIGHT PATTERSON AFB, OH 45433
Clinical Neuropsychologist
4881 SUGAR MAPLE DR, SGOHE
WRIGHT PATTERSON AFB, OH 45433
Dentist (General Practice)
4881 SUGAR MAPLE DR
WRIGHT PATTERSON AFB, OH 45433
Nurse Anesthetist, Certified Registered
4881 SUGAR MAPLE DR, 88MDG/SGCJ
WRIGHT PATTERSON AFB, OH 45433
Psychologist (Clinical)
4881 SUGAR MAPLE DR, 88MDG/SGOHC
WRIGHT PATTERSON AFB, OH 45433
Internal Medicine
4881 SUGAR MAPLE DR, 88 MDOS/SGOMI-A
WPAFB, OH 45433
Anesthesiology
4881 SUGAR MAPLE DR, 88 MDG/SGCJ
WRIGHT PATTERSON AFB, OH 45433
Dentist (Periodontics)
4881 SUGAR MAPLE DR
WRIGHT PATTERSON AFB, OH 45433

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1649665019, enumerated as an "individual" on April 02, 2015.

The provider is located at 4881 SUGAR MAPLE DR WPAFB, OH 45433 and the phone number is (937) 257-6877.

Psychiatry & Neurology with taxonomy code 2084P0804X and a focus in Child & Adolescent Psychiatry.