MARY EHRSAM PA
NPI 1457638736
Physician Assistant in Fpo, AP
NPI Status: Active since November 14, 2011
- Individual
- Female
- Years of Experience 15
- Physician Assistant
- Accepts Insurance
- Accepts Medicare Approved Payment
- PECOS Enrolled
About MARY EHRSAM
This page provides the complete NPI Profile along with additional information for Mary Ehrsam, a primary care provider established in Fpo, with a medical specialization in Physician Assistant and more than 15 years of experience. The healthcare provider is registered in the NPI registry with number 1457638736 assigned on November 2011. The practitioner's primary taxonomy code is 363A00000X. The provider is registered as an individual and her NPI record was last updated April 2026.
- NPI
- 1457638736
- Provider Name
- MARY EHRSAM PA
- Gender
- Female
- Entity Type
- Individual
- Location Address
- PSC 482 FPO, AP 96362
- Location Phone
- Mailing Address
- 4933 SETTLERS MARKET BLVD WILLIAMSBURG, VA 23188
- Mailing Phone
- (814) 882-4246
- Medical School Name
- OTHER
- Graduation Year
- 2011
- Is Sole Proprietor?
- No
- Enumeration Date
- 11-14-2011
- Last Update Date
- 04-15-2026
- Code Navigator
A primary care provider (PCP) like Mary Ehrsam sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, 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
Physician Assistant
- Taxonomy Code
- 363A00000X
- Type
- Physician Assistants & Advanced Practice Nursing Providers
- Taxonomy Description
- A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Bronze Classic 4700 - HMO
- Bronze Classic Standard - HMO
- Bronze Elite + PCP Saver Plus - HMO
- Bronze Simple Breathe Easy with Enhanced COPD Benefits - HMO
- Bronze Simple Chronic Care CKM - HMO
- Bronze Simple Diabetes - HMO
- Gold Classic - HMO
- Gold Classic Standard - HMO
- Gold Elite Saver Plus - HMO
- Silver Classic Standard - HMO
- Bronze Classic 4700 - HMO
- Bronze Classic 4700 | with AdventHealth - HMO
- Bronze Classic Standard - HMO
- Bronze Classic Standard | with AdventHealth - HMO
- Bronze Elite + PCP Saver Plus - HMO
- Bronze Elite + PCP Saver Plus | with AdventHealth - HMO
- Bronze Simple Breathe Easy with Enhanced COPD Benefits - HMO
- Bronze Simple Chronic Care CKM - HMO
- Bronze Simple Diabetes - HMO
- Gold Classic Standard - HMO
- Bronze Classic 4700 - HMO
- Bronze Classic 4700 | with Atrium Health - HMO
- Bronze Classic Standard - HMO
- Bronze Classic Standard | with Atrium Health - HMO
- Bronze Elite + PCP Saver Plus - HMO
- Bronze Elite + PCP Saver Plus | with Atrium Health - HMO
- Bronze Simple Breathe Easy with Enhanced COPD Benefits | with Atrium Health - HMO
- Bronze Simple Chronic Care CKM | with Atrium Health - HMO
- Bronze Simple Diabetes | with Atrium Health - HMO
- Gold Classic Standard - HMO
- Bronze Classic Standard - HMO
- Bronze Elite + PCP Saver Plus - HMO
- Bronze Simple - HMO
- Bronze Simple Breathe Easy with Enhanced COPD Benefits - HMO
- Bronze Simple Chronic Care CKM - HMO
- Buena Salud Bronce Simple Para Diabetes - HMO
- Gold Classic - HMO
- Gold Classic Standard - HMO
- Gold Simple - HMO
- Gold Simple Diabetes - HMO
- Bronze Classic - EPO
- Bronze Classic | with Bryan Health - EPO
- Bronze Classic 4700 - EPO
- Bronze Classic 4700 | MercyOne - EPO
- Bronze Classic Standard - EPO
- Bronze Classic Standard - PPO
- Bronze Classic Standard | MercyOne - EPO
- Bronze Classic Standard | with Bryan Health - EPO
- Bronze Elite + PCP Saver - EPO
- Bronze Elite + PCP Saver Plus - EPO
- Bronze Classic PCP Saver | Cleveland Clinic - HMO
- Bronze Classic Standard | Cleveland Clinic - HMO
- Bronze Simple Breathe Easy with Enhanced COPD Benefits | Cleveland Clinic - HMO
- Bronze Simple Chronic Care CKM | Cleveland Clinic - HMO
- Bronze Simple Diabetes | Cleveland Clinic - HMO
- Bronze Simple HSA | Cleveland Clinic - HMO
- Gold Classic Standard | Cleveland Clinic - HMO
- Gold Elite | Cleveland Clinic - HMO
- Gold Elite Saver Plus | Cleveland Clinic - HMO
- Silver Classic Standard | Cleveland Clinic - HMO
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Medicare Participation & PECOS Enrollment Status
Mary Ehrsam 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.
Mary Ehrsam 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: 4082057070
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: I20240206004974
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
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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 1457638736, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 64 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
FPO, AP 96362
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1457638736, enumerated as an "individual" on November 14, 2011.
The provider is located at PSC 482 FPO, AP 96362 and the phone number is .
Physician Assistant with taxonomy code 363A00000X.
The provider might be accepting Accepts: Oscar Health Insurance, Oscar Health Maintenance. Please consult your insurance carrier or call the provider to verify.
