DR. WILLIAM DAVID PETOK PH.D.
NPI 1275607764
Psychologist in Severna Park, MD

NPI Status: Active since November 17, 2006

Contact Information

479 JUMPERS HOLE RD
SUITE 304B
SEVERNA PARK, MD
ZIP 21146
Phone: (410) 647-9166
Fax: (410) 647-9174

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  • Individual
  • Male
  • Years of Experience 48
  • Psychologist
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About WILLIAM PETOK

This page provides the complete NPI Profile along with additional information for William Petok, a provider established in Severna Park, Maryland with a medical specialization in Psychologist and more than 48 years of experience. The healthcare provider is registered in the NPI registry with number 1275607764 assigned on November 2006. The practitioner's primary taxonomy code is 103T00000X with license number 1349 (MD). The provider is registered as an individual and his NPI record was last updated 18 years ago.

NPI
1275607764
Provider Name
DR. WILLIAM DAVID PETOK PH.D.
Gender
Male
Entity Type
Individual
Location Address
479 JUMPERS HOLE RD SUITE 304B SEVERNA PARK, MD 21146
Location Phone
(410) 647-9166
Location Fax
(410) 647-9174
Mailing Address
479 JUMPERS HOLE RD SUITE 304B SEVERNA PARK, MD 21146
Mailing Phone
(410) 647-9166
Mailing Fax
(410) 647-9174
Medical School Name
OTHER
Graduation Year
1978
Is Sole Proprietor?
Yes
Enumeration Date
11-17-2006
Last Update Date
07-08-2007
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A psychologist like William Petok studies cognitive, emotional, social processes and behavior by observing, interpreting, and recording how people relate to one another and to their environments. Psychologists gather information and evaluate behavior through controlled laboratory experiments, psychoanalysis, psychotherapy or through personality, performance, aptitude, or intelligence tests, and use this information when testing theories in their research or when treating patients.

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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

Psychologist

Taxonomy Code
103T00000X
Type
Behavioral Health & Social Service Providers
License No.
1349
License State
MD
Taxonomy Description
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.

Medicare Participation & PECOS Enrollment Status

William Petok 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 Petok 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: 3870782287

    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: I20110209000829

    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.

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 263 times for 15 patients

Reviews for DR. WILLIAM DAVID PETOK PH.D.

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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.
1275607764
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2214512014712
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 2 + 1 + 4 + 5 + 1 + 2 + 0 + 1 + 4 + 7 + 1 + 2 + 24 = 56
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
60 - 56 = 44

The NPI number 1275607764 is valid because the calculated check digit 4 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 13 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1447336615BLAKESLEE AND EICHELBERGER LLC
Organization
Internal Medicine479 JUMPERS HOLE RD STE 304A BLAKESLEE & EICHELBERGER LLC
SEVERNA PARK, MD 21146
(410) 544-0053
1659416899KAHN & COOPER- KAHN CHARTERED
Organization
Psychologist479 JUMPERS HOLE RD SUITE 106
SEVERNA PARK, MD 21146
(410) 647-8840
1265556609DR. JOYCE COOPER-KAHN PH.D.
Individual
Psychologist (Clinical)479 JUMPERS HOLE RD SUITE 206
SEVERNA PARK, MD 21146
(410) 647-8840
1518082866DR. MICHAEL KAHN PH.D.
Individual
Psychologist (Clinical)479 JUMPERS HOLE RD SUITE 106
SEVERNA PARK, MD 21146
(410) 647-8840
1902925639DR. MARSHA Y BLAKESLEE M.D., D.O.
Individual
Internal Medicine479 JUMPERS HOLE RD STE 304-A
SEVERNA PARK, MD 21146
(410) 544-0053
1205959509DR. ALBERT PETER SINDALL JR. D.D.S.
Individual
Dentist (General Practice)479 JUMPERS HOLE RD SUITE 201
SEVERNA PARK, MD 21146
(410) 544-4444
1992953962DR. LORI KATHLEEN PEREZ
Individual
Specialist479 JUMPERS HOLE RD STE 306
SEVERNA PARK, MD 21146
(410) 544-6850
1124322185WILLIAM D PETOK, PHD, PA
Organization
Psychologist479 JUMPERS HOLE RD SUITE 304B
SEVERNA PARK, MD 21146
(410) 647-9166
1437335973DR. PRAVEEN DUGGAL MD
Individual
Otolaryngology479 JUMPERS HOLE RD SUITE 304
SEVERNA PARK, MD 21146
(410) 544-9988
1386951598DR. ERIN K PALUCHOWSKI D.D.S.
Individual
Dentist479 JUMPERS HOLE RD SUITE 201
SEVERNA PARK, MD 21146
(410) 544-4444
1861889826 JENNIFER KELLY PHD
Individual
Psychologist479 JUMPERS HOLE RD SUITE 106
SEVERNA PARK, MD 21146
(410) 647-8840
1497783393DR. LEE A KLEIMAN M.D.
Individual
Otolaryngology (Facial Plastic Surgery)479 JUMPERS HOLE RD SUITE 304
SEVERNA PARK, MD 21146
(410) 573-9191
1497846570MRS. VALLERI D. WEYANT PA
Individual
Physician Assistant479 JUMPERS HOLE RD SUITE 304
SEVERNA PARK, MD 21146
(410) 573-9191

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1275607764, enumerated in the NPI registry as an "individual" on November 17, 2006

The provider is located at 479 Jumpers Hole Rd Suite 304b Severna Park, Md 21146 and the phone number is (410) 647-9166

The provider's speciality is Psychologist with taxonomy code 103T00000X

The provider has more than 48 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: Psychotherapy, 1 hour.

This NPI record was last updated on November 17, 2006. 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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