BRETT MARAR CHAMBERLIN M.D.
NPI 1134323934
Internal Medicine in Oceanside, CA

NPI Status: Active since June 14, 2007

Contact Information

200 MERCY CIRCLE
OCEANSIDE, CA
ZIP 92055
Phone: (760) 725-1288

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  • Individual
  • Male
  • Internal Medicine
  • PECOS Enrolled

About BRETT CHAMBERLIN

This page provides the complete NPI Profile along with additional information for Brett Chamberlin, an internist established in Oceanside, California with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1134323934 assigned on June 2007. The practitioner's primary taxonomy code is 207R00000X with license number 105614 (CA). The provider is registered as an individual and his NPI record was last updated 3 years ago.

NPI
1134323934
Provider Name
BRETT MARAR CHAMBERLIN M.D.
Gender
Male
Entity Type
Individual
Location Address
200 MERCY CIRCLE OCEANSIDE, CA 92055
Location Phone
(760) 725-1288
Mailing Address
PSC 455 BOX 208 FPO, AP 96540
Is Sole Proprietor?
Yes
Enumeration Date
06-14-2007
Last Update Date
10-20-2023
Code Navigator

An internist like Brett Chamberlin is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

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

Internal Medicine

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
105614
License State
CA
Taxonomy Description
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Medicare Participation & PECOS Enrollment Status

Brett Chamberlin 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

  • 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

Physician Visit Costs

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 92055 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $140.22
  • Minimum New Patient Price $62.1
  • Maximum New Patient Price $184.71
  • Average New Patient Copayment $35.05
  • Minimum New Patient Copayment $15.52
  • Maximum New Patient Copayment $46.17

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $108.42
  • Minimum Established Patient Price $20.62
  • Maximum Established Patient Price $151.42
  • Average Established Patient Copayment $27.1
  • Minimum Established Patient Copayment $5.15
  • Maximum Established Patient Copayment $37.85

* 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.

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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 1134323934, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

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
1
Unchanged
Pos 3
3
Doubled → 6
Pos 4
4
Unchanged
Pos 5
3
Doubled → 6
Pos 6
2
Unchanged
Pos 7
3
Doubled → 6
Pos 8
9
Unchanged
Pos 9
3
Doubled → 6
Check
4
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 3 → 6 3 → 6 3 → 6 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 6 + 4 + 6 + 2 + 6 + 9 + 6 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1134323934.

Other Providers at the Same Location


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

Emergency Medicine
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CAMP PENDLETON, CA 92055
Physical Therapist
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
Military Hospital
200 MERCY CIRCLE, ATTENTION: CODE 00QM
CAMP PENDLETON, CA 92055
Student in an Organized Health Care Education/Training Program
200 MERCY CIRCLE, ATTN: MEDICAL STAFF SERVICES
CAMP PENDLETON, CA 92055
Surgery
200 MERCY CIRCLE, NAVAL HOSPITAL CAMP PENDLETON
CAMP PENDLETON, CA 92055
Nurse Practitioner (Psychiatric/Mental Health)
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
Nurse Practitioner
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
Family Medicine
200 MERCY CIRCLE, NAVAL HOSPITAL CAMP PENDLETON
CAMP PENDLETON, CA 92055
Student in an Organized Health Care Education/Training Program
200 MERCY CIRCLE, NAVAL HOSPITAL CAMP PENDLETON
CAMP PENDLETON, CA 92055
Nurse Practitioner (Pediatrics)
200 MERCY CIRCLE, BOX 555191 NAVAL HOSPITAL CAMP PENDLETON
CAMP PENDLETON, CA 92055
Dietitian, Registered
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
Psychologist (Clinical)
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
Radiology (Diagnostic Radiology)
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
Dentist
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
Student in an Organized Health Care Education/Training Program
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
Psychologist (Clinical)
200 MERCY CIRCLE
OCEANSIDE, CA 92055
Military Health Care Provider
200 MERCY CIRCLE, PHARMACY DEPARTMENT
CAMP PENDLETON, CA 92055
Military Health Care Provider
200 MERCY CIRCLE
OCEANSIDE, CA 92055
Physician Assistant
200 MERCY CIRCLE
OCEANSIDE, CA 92055
Pediatrics
200 MERCY CIRCLE
OCEANSIDE, CA 92055

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1134323934, enumerated as an "individual" on June 14, 2007.

The provider is located at 200 MERCY CIRCLE OCEANSIDE, CA 92055 and the phone number is (760) 725-1288.

Internal Medicine with taxonomy code 207R00000X.