DR. ROBERT WILLIAM BUSTER M.D.
NPI 1841343076
Internal Medicine - Geriatric Medicine in Orange, CA
NPI Status: Active since January 19, 2007
Contact Information
845 W LA VETA AVE STE 108
ORANGE, CA
ZIP 92868
Phone: (714) 639-2600
Fax: (714) 289-3906
- Individual
- Male
- Internal Medicine
- Geriatric Medicine
- PECOS Enrolled
About ROBERT BUSTER
This page provides the complete NPI Profile along with additional information for Robert Buster, an internist established in Orange, California with a medical specialization in Internal Medicine, focusing in geriatric medicine . The healthcare provider is registered in the NPI registry with number 1841343076 assigned on January 2007. The practitioner's primary taxonomy code is 207RG0300X with license number A24799 (CA). The provider is registered as an individual and his NPI record was last updated 4 years ago.
- NPI
- 1841343076
- Provider Name
- DR. ROBERT WILLIAM BUSTER M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 845 W LA VETA AVE STE 108 ORANGE, CA 92868
- Location Phone
- (714) 639-2600
- Location Fax
- (714) 289-3906
- Mailing Address
- 845 W LA VETA AVE STE 108 ORANGE, CA 92868
- Mailing Phone
- (714) 639-2600
- Mailing Fax
- (714) 289-3906
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 01-19-2007
- Last Update Date
- 10-15-2021
- Code Navigator
An internist like Robert Buster 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 Geriatric Medicine
- Taxonomy Code
- 207RG0300X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- A24799
- License State
- CA
- Taxonomy Description
- An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.
Medicare Participation & PECOS Enrollment Status
Robert Buster 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: Durable Medical Equipment (DME) 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: No
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: 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 92868 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99205
- Average New Patient Price $187.6
- Minimum New Patient Price $62.96
- Maximum New Patient Price $187.6
- Average New Patient Copayment $46.9
- 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 99214
- Average Established Patient Price $109.96
- Minimum Established Patient Price $20.84
- Maximum Established Patient Price $153.61
- Average Established Patient Copayment $27.49
- 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.
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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. | |||||||||
| 1 | 8 | 4 | 1 | 3 | 4 | 3 | 0 | 7 | 6 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 8 | 8 | 1 | 6 | 4 | 6 | 0 | 14 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 8 + 8 + 1 + 6 + 4 + 6 + 0 + 1 + 4 + 24 = 64 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 70 - 64 = 6 | 6 | ||||||||
The NPI number 1841343076 is valid because the calculated check digit 6 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 12 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1710030960 | R. WILLIAM BUSTER, M.D. AND ASSOCIATES Organization | Internal Medicine (Geriatric Medicine) | 845 W LA VETA AVE STE 108 ORANGE, CA 92868 (714) 639-2600 |
| 1770550246 | LULU KY YANG M.D. Individual | Internal Medicine | 845 W LA VETA AVE STE 108 ORANGE, CA 92868 (714) 639-2600 |
| 1962470161 | ROBERT PARKE M.D. Individual | Internal Medicine (Pulmonary Disease) | 845 W LA VETA AVE STE 108 ORANGE, CA 92868 (714) 639-2600 |
| 1437140811 | CHRISTOS ROBERT HOWARD MD Individual | Family Medicine | 845 W LA VETA AVE STE 108 ORANGE, CA 92868 (714) 639-2600 |
| 1528078672 | KASRA MORSHEDIZADEH M.D. Individual | Internal Medicine | 845 W LA VETA AVE STE 108 ORANGE, CA 92868 (714) 639-2600 |
| 1699139287 | JOSEPH SHERMAN HSIAO MD Individual | Internal Medicine (Endocrinology, Diabetes & Metabolism) | 845 W LA VETA AVE STE 108 ORANGE, CA 92868 (714) 639-2600 |
| 1174844104 | JENNY WANG D.O. Individual | Family Medicine | 845 W LA VETA AVE STE 108 ORANGE, CA 92868 (714) 639-2600 |
| 1942935705 | MS. ANNE GONZALES MSN-FNP Individual | Nurse Practitioner | 845 W LA VETA AVE STE 108 ORANGE, CA 92868 (714) 639-2600 |
| 1851920904 | JEREMY JOSEPH FECK DO Individual | Family Medicine | 845 W LA VETA AVE STE 108 ORANGE, CA 92868 (714) 639-2600 |
| 1710513684 | VINCENT PAN DO Individual | Family Medicine | 845 W LA VETA AVE STE 108 ORANGE, CA 92868 (714) 639-2600 |
| 1023768033 | MRS. SELINA DANIELLE SLADICS NP Individual | Nurse Practitioner | 845 W LA VETA AVE STE 108 ORANGE, CA 92868 (714) 639-2600 |
| 1952500696 | MAHMOUD QASEM MOAMMAR MD Individual | Internal Medicine (Pulmonary Disease) | 845 W LA VETA AVE STE 108 ORANGE, CA 92868 (714) 289-6552 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1841343076, enumerated in the NPI registry as an "individual" on January 19, 2007
The provider is located at 845 W La Veta Ave Ste 108 Orange, Ca 92868 and the phone number is (714) 639-2600
The provider's speciality is Internal Medicine with taxonomy code 207RG0300X with a focus in Geriatric Medicine
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: Durable Medical Equipment (DME) and Power Mobility Devices.
Medicare beneficiaries should expect a typical cost of $187.6 with an average copayment of $46.9 for new patient appointments. Established patients should expect a typical charge of $109.96 and an average copayment of 27.49. Please review your insurance plan or contact the provider directly to determine your specific costs.
This NPI record was last updated on January 19, 2007. 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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