DR. ALEXANDER ADU CLERK M.D. NPI 1902911381

NPI Information

  • NPI: 1902911381
  • Provider Name: DR. ALEXANDER ADU CLERK, M.D.
  • Classification: Sleep Specialist, PhD - 173F00000X
  • Entity Type: Individual
  • PECOS Registration: Yes
  • Address: 455 OCONNOR DR STE 110
    SAN JOSE, CA
    ZIP 95128
  • Phone: (408) 295-4532

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NPI Details

DR. Alexander Adu Clerk, M.D. is a sleep specialist phd in San Jose, CA with 51 years of experience. The provider is sleep medicine is a clinical specialty with a focus on clinical problems that require accurate diagnosis and treatment. The knowledge base of sleep medicine is derived from many disciplines including neuroanatomy, neurophysiology, respiratory physiology, pharmacology, psychology, psychiatry, neurology, general internal medicine, pulmonary medicine, and pediatrics as well as others. DR. Alexander Adu Clerk, M.D. NPI is 1902911381. The provider is registered as an individual entity type.

The NPPES NPI record indicates the provider is a male.

Education
Medical School: LOMA LINDA UNIVERSITY SCHOOL OF MEDICINE
Graduation Year:1975

The provider's business location address is:

455 OCONNOR DR STE 110
SAN JOSE, CA
ZIP 95128-637
Phone: (408) 295-4532
Fax: (408) 295-4738

The NPI 1902911381 is registered in the Medicare Provider, Enrollment, Chain and Ownership System (PECOS). The provider is legally eligible to order and refer Part B (Clinical Laboratory and Imaging), Durable Medical Equipment, Part A Home Health Agency (HHA), Power Mobility Devices.

The following top HCPCS codes were publicly reported for this provider under the Medicare program for the year 2016. The reported codes are based on the top codes for each available Medicare specialty, excluding evaluation and management codes.

  • Established patient office or other outpatient visit, 30-39 minutes (HCPCS:99214)
  • Follow-up hospital inpatient care per day, typically 25 minutes (HCPCS:99232)
  • Initial hospital inpatient care per day, typically 70 minutes (HCPCS:99223)
  • Established patient office or other outpatient visit, 40-54 minutes (HCPCS:99215)
  • New patient office or other outpatient visit, 45-59 minutes (HCPCS:99204)
  • Sleep study in sleep lab (6 years or older) (HCPCS:95810)
  • Sleep study in sleep lab with continuous airway pressure (6 years or older) (HCPCS:95811)

The enumeration date for this NPI number is 8/19/2006 and was last updated on 1/19/2021.

Taxonomy Codes

The NPI record includes the healthcare provider taxonomy classification, state license number and state of licensure. The following information regarding the scope of practice of this provider is available:

No. Taxonomy Code Taxonomy Clasification Taxonomy Specialization License Number License State Primary
12084P0800XPsychiatry & NeurologyPsychiatryA36573CALIFORNIANo
2173F00000XSleep Specialist, PhD448CALIFORNIAYes

What is NPI?

NPI stands for National Provider Identifier. The NPI is a 10-digit identification number that is completely unique. The NPI number by itself does not contain any identifiable information such as a provider’s speciality or location. The NPI is assigned to individuals or organizacions for their lifespan and it is independent of key provider information type updates like a change of practices, location or speciality.

This page was last updated on: 11/21/2025

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