DR. DOUGLAS G HAMILTON M.D.
NPI 1497815880
Dermatology - Dermatopathology in Woodland Hills, CA

NPI Status: Active since December 08, 2006

Contact Information

6325 TOPANGA CANYON BLVD
301
WOODLAND HILLS, CA
ZIP 91367
Phone: (818) 884-7150
Fax: (818) 884-1254

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  • Individual
  • Male
  • Years of Experience 57
  • Dermatology
  • Dermatopathology
  • Accepts Medicare Approved Payment
  • PECOS Enrolled
  • CLIA Number: 05D0859658
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 07-08-2027

About DOUGLAS HAMILTON

This page provides the complete NPI Profile along with additional information for Douglas Hamilton, a provider established in Woodland Hills, California with a medical specialization in Dermatology, focusing in dermatopathology and more than 57 years of experience. He graduated from Albany Medical College Of Union University in 1969. The healthcare provider is registered in the NPI registry with number 1497815880 assigned on December 2006. The practitioner's primary taxonomy code is 207ND0900X with license number G20987 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1497815880
Provider Name
DR. DOUGLAS G HAMILTON M.D.
Gender
Male
Entity Type
Individual
Location Address
6325 TOPANGA CANYON BLVD 301 WOODLAND HILLS, CA 91367
Location Phone
(818) 884-7150
Location Fax
(818) 884-1254
Mailing Address
12021 WILSHIRE BLVD #309 LOS ANGELES, CA 90025
Mailing Phone
(818) 884-7150
Mailing Fax
(818) 884-1254
Medical School Name
ALBANY MEDICAL COLLEGE OF UNION UNIVERSITY
Graduation Year
1969
Is Sole Proprietor?
Yes
Enumeration Date
12-08-2006
Last Update Date
07-08-2007
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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

Dermatology Dermatopathology

Taxonomy Code
207ND0900X
Type
Allopathic & Osteopathic Physicians
License No.
G20987
License State
CA
Taxonomy Description
A dermatopathologist has the expertise to diagnose and monitor diseases of the skin including infectious, immunologic, degenerative and neoplastic diseases. This entails the examination and interpretation of specially prepared tissue sections, cellular scrapings and smears of skin lesions by means of routine and special (electron and fluorescent) microscopes.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
G20987MEDICARE ID-TYPE UNSPECIFIED (04) 
A41125MEDICARE UPIN (02)CA 

Medicare Participation & PECOS Enrollment Status

Douglas Hamilton 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.

Douglas Hamilton 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: 6103004049

    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: I20110624000270

    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): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

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.

Destruction of precancer skin growth, 1 growth

"Destruction of precancer skin growth" is a procedure that eliminates a single precancerous skin growth. This is done to prevent it from developing into skin cancer. The growth may be removed using various methods such as cryotherapy (freezing), laser therapy, or topical medications.

This service was performed 14 times for 11 patients

Established patient office or other outpatient visit, 20-29 minutes

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.

This service was performed 113 times for 74 patients

Melanoma (skin cancer) excision

Melanoma excision is a procedure where a surgeon removes melanoma, a type of skin cancer, and some surrounding healthy tissue. Local anesthesia is applied to numb the area. The goal is to completely remove the cancer and prevent its spread. Healing time varies.

This service was performed for 53 patients

New patient office or other outpatient visit, 30-44 minutes

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

This service was performed 35 times for 35 patients

Pathology examination of tissue using a microscope, intermediate complexity

A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.

This service was performed 197 times for 75 patients

Removal of noncancer skin growth of body, arms, or legs, 1.1-2.0 cm

This procedure involves the removal of a noncancerous skin growth on the body, arms, or legs that is between 1.1 and 2.0 cm in size. It's a safe and routine procedure performed by a medical professional to improve your skin health and appearance.

This service was performed 41 times for 26 patients

Removal of noncancer skin growth of body, arms, or legs, 2.1-3.0 cm

This is a procedure where a noncancerous skin growth, sized 2.1-3.0 cm, on the body, arms, or legs is removed. It's typically done under local anesthesia. The process involves cutting out the growth and stitching the skin back together. The aim is to eliminate discomfort and prevent potential health issues.

This service was performed 19 times for 13 patients

Removal of noncancer skin growth of face, ears, eyelids, nose, lips, or mouth, 1.1-2.0 cm

This procedure involves the removal of a noncancerous skin growth on your face, ears, eyelids, nose, lips, or mouth that measures between 1.1-2.0 cm. It's a safe process to enhance your comfort and appearance.

This service was performed 21 times for 15 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $24.09 for a new patient copayment and $19.49 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 91367 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99203

  • Average New Patient Price $96.36
  • Minimum New Patient Price $62.96
  • Maximum New Patient Price $187.6
  • Average New Patient Copayment $24.09
  • Minimum New Patient Copayment $15.74
  • Maximum New Patient Copayment $46.9

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99213

  • Average Established Patient Price $77.96
  • Minimum Established Patient Price $20.84
  • Maximum Established Patient Price $153.61
  • Average Established Patient Copayment $19.49
  • Minimum Established Patient Copayment $5.21
  • Maximum Established Patient Copayment $38.4

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
05D0859658
Facility Type
Physician Office
Certificate Effective Date
July 09, 2025
Certificate Expiration Date
July 08, 2027
Laboratory Director
DOUGLAS G. HAMILTON
Certificate Type
Certificate of Compliance
Certificate Type Description
This CLIA certificate is issued to Douglas Hamilton after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements. This type of certificate is issued to laboratories that perform nonwaived (moderate and/or high complexity) testing.

Reviews for DR. DOUGLAS G HAMILTON M.D.

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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 1497815880, we treat the final digit (0) 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).

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
4
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
7
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
1
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
8
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
0
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 9 → 18 → 9 8 → 16 → 7 5 → 10 → 1 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 8 + 7 + 1 + 6 + 1 + 1 + 0 + 8 + 1 + 6 + 24 = 70

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

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

70 - 70 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1497815880.

Other Providers at the Same Location


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

Physical Therapist
6325 TOPANGA CANYON BLVD, SUITE 100
WOODLAND HILLS, CA 91367
Podiatrist
6325 TOPANGA CANYON BLVD, STE 103
WOODLAND HILLS, CA 91367
Dentist
6325 TOPANGA CANYON BLVD, SUITE 204
WOODLAND HILLS, CA 91367
Ophthalmology
6325 TOPANGA CANYON BLVD
WOODLAND HILLS, CA 91367
Specialist
6325 TOPANGA CANYON BLVD, SUITE 417
WOODLAND HILLS, CA 91367
Dentist (Oral and Maxillofacial Surgery)
6325 TOPANGA CANYON BLVD, SUITE 435
WOODLAND HILLS, CA 91367
Obstetrics & Gynecology
6325 TOPANGA CANYON BLVD, STE 535
WOODLAND HILLS, CA 91367
Internal Medicine
6325 TOPANGA CANYON BLVD, 315
WOODLAND HILLS, CA 91367
Dentist (General Practice)
6325 TOPANGA CANYON BLVD, SUITE 411
WOODLAND HILLS, CA 91367
Chiropractor
6325 TOPANGA CANYON BLVD, SUITE 111
WOODLAND HILLS, CA 91367
Dentist (Periodontics)
6325 TOPANGA CANYON BLVD, SUITE 202
WOODLAND HILLS, CA 91367
Clinic/Center (Primary Care)
6325 TOPANGA CANYON BLVD, SUITE 412
WOODLAND HILLS, CA 91367
Counselor (Professional)
6325 TOPANGA CANYON BLVD, STE. 305
WOODLAND HILLS, CA 91367
Dentist (General Practice)
6325 TOPANGA CANYON BLVD, #310
WOODLAND HILLS, CA 91367
Dentist (Endodontics)
6325 TOPANGA CANYON BLVD, SUITE 235
WOODLAND HILLS, CA 91367
Dentist (General Practice)
6325 TOPANGA CANYON BLVD, SUITE 508
WOODLAND HILLS, CA 91367
Health Maintenance Organization
6325 TOPANGA CANYON BLVD, SUITE #135
WOODLAND HILLS, CA 91367
Dentist (General Practice)
6325 TOPANGA CANYON BLVD, SUITE 231
WOODLAND HILLS, CA 91367
Clinic/Center (Radiology)
6325 TOPANGA CANYON BLVD, SUITE 104
WOODLAND HILLS, CA 91367
Psychologist (Clinical)
6325 TOPANGA CANYON BLVD, SUITE 305
WOODLAND HILLS, CA 91367

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1497815880, enumerated as an "individual" on December 08, 2006.

The provider is located at 6325 TOPANGA CANYON BLVD 301 WOODLAND HILLS, CA 91367 and the phone number is (818) 884-7150.

Dermatology with taxonomy code 207ND0900X and a focus in Dermatopathology.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.