DR. VIVIAN N PHAM MD
NPI 1700454907
Emergency Medicine in Saint Louis, MO
NPI Status: Active since June 14, 2021
Contact Information
11133 DUNN RD
DEPT EMERGENCY MED
SAINT LOUIS, MO
ZIP 63136
Phone: (314) 362-9123
Fax: (314) 747-9160
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.
- Individual
- Female
- Years of Experience 5
- Emergency Medicine
- Accepts Insurance
- Accepts Medicare Approved Payment
- PECOS Enrolled
About VIVIAN PHAM
This page provides the complete NPI Profile along with additional information for Vivian Pham, a provider established in Saint Louis, Missouri with a medical specialization in Emergency Medicine and more than 5 years of experience. She graduated from University Of Iowa, Rj & L Carver College Of Medicine in 2021. The healthcare provider is registered in the NPI registry with number 1700454907 assigned on June 2021. The practitioner's primary taxonomy code is 207P00000X with license number 2022046611 (MO). The provider is registered as an individual and her NPI record was last updated July 2025.
- NPI
- 1700454907
- Provider Name
- DR. VIVIAN N PHAM MD
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 11133 DUNN RD DEPT EMERGENCY MED SAINT LOUIS, MO 63136
- Location Phone
- (314) 362-9123
- Location Fax
- (314) 747-9160
- Mailing Address
- PO BOX 7412011 CHICAGO, IL 60674
- Mailing Phone
- (314) 362-9123
- Mailing Fax
- (314) 747-9160
- Medical School Name
- UNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
- Graduation Year
- 2021
- Is Sole Proprietor?
- No
- Enumeration Date
- 06-14-2021
- Last Update Date
- 07-14-2025
- Code Navigator
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
Emergency Medicine
- Taxonomy Code
- 207P00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 2022046611
- License State
- MO
- Taxonomy Description
- An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Bronze 2 Advanced HSA: Aetna network + CVS Health Virtual Primary Care - EPO
- Bronze 4 Advanced: Aetna network + $0 CVS Health Virtual Primary Care - EPO
- Bronze 4 Advanced: Aetna network + $0 CVS Health Virtual Primary Care + Adult Dental + Vision - EPO
- Bronze S: Aetna network + $0 CVS Health Virtual Primary Care - EPO
- Gold S: Aetna network + $0 CVS Health Virtual Primary Care - EPO
- Silver 10 Advanced: Aetna network + $0 CVS Health Virtual Primary Care - EPO
- Silver 10 Advanced: Aetna network + $0 CVS Health Virtual Primary Care + Adult Dental + Vision - EPO
- Silver 5 Advanced: Aetna network + $0 CVS Health Virtual Primary Care - EPO
- Silver S: Aetna network + $0 CVS Health Virtual Primary Care - EPO
- Silver S: Aetna network + $0 CVS Health Virtual Primary Care + Adult Dental+Vision - EPO
- Balance by Medica Bronze $0 Copay PCP Visits - EPO
- Balance by Medica Bronze $0 Copay PCP Visits - PPO
- Balance by Medica Bronze Premier - EPO
- Balance by Medica Bronze Premier - PPO
- Balance by Medica Catastrophic - EPO
- Balance by Medica Catastrophic - PPO
- Balance by Medica Expanded Bronze Standard - EPO
- Balance by Medica Expanded Bronze Standard - PPO
- Balance by Medica Gold $0 Copay PCP Visits - EPO
- Balance by Medica Gold $0 Copay PCP Visits - PPO
- Balance by Medica Gold Share - EPO
- Balance by Medica Gold Share - PPO
- Balance by Medica Gold Standard - EPO
- Balance by Medica Gold Standard - PPO
- Balance by Medica Silver $0 Copay PCP Visits - EPO
- Balance by Medica Silver $0 Copay PCP Visits - PPO
- Balance by Medica Silver Share - EPO
- Balance by Medica Silver Share - PPO
- Balance by Medica Silver Standard - EPO
- Balance by Medica Silver Standard - PPO
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Medicare Participation & PECOS Enrollment Status
Vivian Pham 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.
Vivian Pham 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: 4981064268
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: I20240814002577
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
Physician Visit Costs
The typical physician office visit costs for Medicare beneficiaries in this area are: $21.58 for a new patient copayment and $24.59 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 63136 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99203
- Average New Patient Price $86.32
- Minimum New Patient Price $55.65
- Maximum New Patient Price $169.38
- Average New Patient Copayment $21.58
- Minimum New Patient Copayment $13.91
- Maximum New Patient Copayment $42.34
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99214
- Average Established Patient Price $98.37
- Minimum Established Patient Price $17.76
- Maximum Established Patient Price $137.92
- Average Established Patient Copayment $24.59
- Minimum Established Patient Copayment $4.44
- Maximum Established Patient Copayment $34.48
* 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.
Find Provider Hospital Affiliations - Privileges
Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.
Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Vivian Pham is affiliated with the following medical facilities:
Hospital Name | Address | Phone | Hospital Type | Overall Rating |
---|---|---|---|---|
MERCY HOSPITAL JEFFERSON | 1400 US HIGHWAY 61 FESTUS, MO 63028 | (636) 933-1000 | Acute Care Hospitals | |
CHRISTIAN HOSPITAL NORTHEAST | 11133 DUNN ROAD SAINT LOUIS, MO 63136 | (314) 653-5000 | Acute Care Hospitals |
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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 | 7 | 0 | 0 | 4 | 5 | 4 | 9 | 0 | 7 |
Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
2 | 7 | 0 | 0 | 8 | 5 | 8 | 9 | 0 | |
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
2 + 7 + 0 + 0 + 8 + 5 + 8 + 9 + 0 + 24 = 63 | |||||||||
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
70 - 63 = 7 | 7 |
The NPI number 1700454907 is valid because the calculated check digit 7 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 20 providers are registered at the same or nearby location.
DR. JOHN OLDHAM M.D.
Emergency Medicine
11133 DUNN RD
RM H2241
SAINT LOUIS, MO
ZIP 63136
DR. CARL E. BUSSMANN M,D.
Emergency Medicine
(Emergency Medical Services)
11133 DUNN RD
DEPARTMENT OF EMS
SAINT LOUIS, MO
ZIP 63136
MYRON H JACOBS M.D.
Internal Medicine
(Pulmonary Disease)
11133 DUNN RD
SUITE 2335
SAINT LOUIS, MO
ZIP 63136
DR. ROYAL J EATON M.D.
Internal Medicine
(Pulmonary Disease)
11133 DUNN RD
SUITE 2335
SAINT LOUIS, MO
ZIP 63136
DR. MICHAEL JEFFREY BARKOVIAK M.D.
Internal Medicine
(Pulmonary Disease)
11133 DUNN RD
SUITE 2335
SAINT LOUIS, MO
ZIP 63136
DR. WILLIAM DOUGLAS ZWEIG M.D.
Internal Medicine
(Pulmonary Disease)
11133 DUNN RD
SUITE 2335
SAINT LOUIS, MO
ZIP 63136
GARY R GOLDSTEIN M.D.
Internal Medicine
(Pulmonary Disease)
11133 DUNN RD
SUITE 2335
SAINT LOUIS, MO
ZIP 63136
SUSAN C. RAYNE M.D.
Pathology
(Anatomic Pathology & Clinical Pathology)
11133 DUNN RD
DEPT. OF PATHOLOGY
SAINT LOUIS, MO
ZIP 63136
JOHN L. ROLLO M.D.
Pathology
(Anatomic Pathology & Clinical Pathology)
11133 DUNN RD
DEPT. OF PATHOLOGY
SAINT LOUIS, MO
ZIP 63136
MARY A. RUDLOFF M.D.
Pathology
(Anatomic Pathology)
11133 DUNN RD
DEPT. OF PATHOLOGY
SAINT LOUIS, MO
ZIP 63136
MARILYN F.M. JOHNSTON M.D.
Pathology
(Clinical Pathology/Laboratory Medicine)
11133 DUNN RD
DEPT. OF PATHOLOGY
SAINT LOUIS, MO
ZIP 63136
GREGORY S. KING M.D.
Pathology
(Anatomic Pathology & Clinical Pathology)
11133 DUNN RD
DEPT. OF PATHOLOGY
SAINT LOUIS, MO
ZIP 63136
STEVEN M. JOHNSON M.D.
Pathology
(Anatomic Pathology & Clinical Pathology)
11133 DUNN RD
DEPT. OF PATHOLOGY
SAINT LOUIS, MO
ZIP 63136
AHMET B GULER M.D.
Internal Medicine
11133 DUNN RD
ROOM 2427
SAINT LOUIS, MO
ZIP 63136
CURTIS FAIR CRNA
Nurse Anesthetist, Certified Registered
11133 DUNN RD
SAINT LOUIS, MO
ZIP 63136
RAYMOND BOOTH CRNA
Nurse Anesthetist, Certified Registered
11133 DUNN RD
SAINT LOUIS, MO
ZIP 63136
MIDWEST RADIOLOGICAL ASSOCIATES
Specialist
11133 DUNN RD
RADIOLOGY DEPT
SAINT LOUIS, MO
ZIP 63136
FAQIR AHMAD MD
Emergency Medicine
11133 DUNN RD
EMERGENCY DEPARTMENT, CHRISTIAN HOSPITAL
SAINT LOUIS, MO
ZIP 63136
NORTH COUNTY EMERGENCY PHYSICIANS, LLP
Emergency Medicine
11133 DUNN RD
SAINT LOUIS, MO
ZIP 63136
ROBERT TARR M.D.
Emergency Medicine
11133 DUNN RD
SAINT LOUIS, MO
ZIP 63136
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1700454907, enumerated as an "individual" on June 14, 2021.
The provider is located at 11133 DUNN RD DEPT EMERGENCY MED SAINT LOUIS, MO 63136 and the phone number is (314) 362-9123.
Emergency Medicine with taxonomy code 207P00000X.
The provider might be accepting Accepts: Aetna CVS Health and Medica. Please consult your insurance carrier or call the provider to verify.
Vivian Pham is affiliated with: MERCY HOSPITAL JEFFERSON and CHRISTIAN HOSPITAL NORTHEAST.