DENNIS HAO CHEN MD
NPI 1639759970
Internal Medicine - Endocrinology, Diabetes & Metabolism in Los Angeles, CA
NPI Status: Active since April 12, 2021
Contact Information
8723 ALDEN DR STE 290
LOS ANGELES, CA
ZIP 90048
Phone: (310) 423-3277
- Individual
- Male
- Internal Medicine
- Endocrinology, Diabetes & Metabolism
- PECOS Enrolled
About DENNIS CHEN
This page provides the complete NPI Profile along with additional information for Dennis Chen, an internist established in Los Angeles, California with a medical specialization in Internal Medicine, focusing in endocrinology, diabetes & metabolism . The healthcare provider is registered in the NPI registry with number 1639759970 assigned on April 2021. The practitioner's primary taxonomy code is 207RE0101X with license number A193287 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1639759970
- Provider Name
- DENNIS HAO CHEN MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 8723 ALDEN DR STE 290 LOS ANGELES, CA 90048
- Location Phone
- (310) 423-3277
- Mailing Address
- 8723 ALDEN DR STE 290 LOS ANGELES, CA 90048
- Mailing Phone
- (323) 423-3277
- Is Sole Proprietor?
- No
- Enumeration Date
- 04-12-2021
- Last Update Date
- 07-20-2024
- Code Navigator
An internist like Dennis Chen 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 Endocrinology, Diabetes & Metabolism
- Taxonomy Code
- 207RE0101X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- A193287
- License State
- CA
- Taxonomy Description
- An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
Medicare Participation & PECOS Enrollment Status
Dennis Chen 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 90048 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99204
- Average New Patient Price $142.39
- Minimum New Patient Price $62.96
- Maximum New Patient Price $187.6
- Average New Patient Copayment $35.59
- 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 | 6 | 3 | 9 | 7 | 5 | 9 | 9 | 7 | 0 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 6 | 6 | 9 | 14 | 5 | 18 | 9 | 14 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 6 + 6 + 9 + 1 + 4 + 5 + 1 + 8 + 9 + 1 + 4 + 24 = 80 | |||||||||
| Step 3: because the number obtained in step 2 ends in zero, the check digit is zero. | |||||||||
| 0 | |||||||||
The NPI number 1639759970 is valid because the calculated check digit 0 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 3 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1861954851 | MICHELLE KOH Individual | Student in an Organized Health Care Education/Training Program | 8723 ALDEN DR STE 290 LOS ANGELES, CA 90048 (310) 423-3870 |
| 1114595238 | BOLIN L CHANG MD Individual | Internal Medicine (Endocrinology, Diabetes & Metabolism) | 8723 ALDEN DR STE 290 LOS ANGELES, CA 90048 (310) 423-4774 |
| 1588493639 | CEDARS-SINAI MEDICAL CENTER Organization | Durable Medical Equipment & Medical Supplies | 8723 ALDEN DR STE 290 LOS ANGELES, CA 90048 (310) 423-3870 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1639759970, enumerated in the NPI registry as an "individual" on April 12, 2021
The provider is located at 8723 Alden Dr Ste 290 Los Angeles, Ca 90048 and the phone number is (310) 423-3277
The provider's speciality is Internal Medicine with taxonomy code 207RE0101X with a focus in Endocrinology, Diabetes & Metabolism
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, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
Medicare beneficiaries should expect a typical cost of $142.39 with an average copayment of $35.59 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 April 12, 2021. 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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