MARISSA RILEY FELKNOR MD
NPI 1093464232
Pediatrics - Pediatric Emergency Medicine in Pittsburgh, PA
NPI Status: Active since March 23, 2022
Contact Information
4401 PENN AVE STE 2400
PITTSBURGH, PA
ZIP 15224
Phone: (412) 692-7980
- Individual
- Female
- Pediatrics
- Pediatric Emergency Medicine
- PECOS Enrolled
About MARISSA FELKNOR
This page provides the complete NPI Profile along with additional information for Marissa Felknor, a pediatrician established in Pittsburgh, Pennsylvania with a medical specialization in Pediatrics, focusing in pediatric emergency medicine . The healthcare provider is registered in the NPI registry with number 1093464232 assigned on March 2022. The practitioner's primary taxonomy code is 2080P0204X with license number MT235207 (PA). The provider is registered as an individual and her NPI record was last updated January 2026.
- NPI
- 1093464232
- Provider Name
- MARISSA RILEY FELKNOR MD
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 4401 PENN AVE STE 2400 PITTSBURGH, PA 15224
- Location Phone
- (412) 692-7980
- Mailing Address
- 3600 FORBES AVE STE 140 PITTSBURGH, PA 15213
- Is Sole Proprietor?
- No
- Enumeration Date
- 03-23-2022
- Last Update Date
- 01-27-2026
- Code Navigator
A pediatrician like Marissa Felknor is a physician who has completed a pediatric residency and is board-certified or board-eligible in a pediatric specialty. Pediatric care providers are trained to care for newborns, infants, children and adolescents. A pediatrician could perform physical exams, manage vaccinations, monitor development milestones, diagnose illnesses, infections, injuries or other health problems, etc.
Location Map
Secondary Locations
- 225 E Chicago Ave
Chicago, IL 60611
(312) 227-4000
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
Pediatrics Pediatric Emergency Medicine
- Taxonomy Code
- 2080P0204X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- MT235207
- License State
- PA
- Taxonomy Description
- A pediatrician who has special qualifications to manage emergencies in infants and children.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 208000000X | Allopathic & Osteopathic Physicians | Pediatrics | MD490829 (PA) |
| 2 | 390200000X | Student, Health Care | Student in an Organized Health Care Education/Training Program |
Medicare Participation & PECOS Enrollment Status
Marissa Felknor 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
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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 1093464232, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).
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 68 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1093464232, enumerated as an "individual" on March 23, 2022.
The provider is located at 4401 PENN AVE STE 2400 PITTSBURGH, PA 15224 and the phone number is (412) 692-7980.
Pediatrics with taxonomy code 2080P0204X and a focus in Pediatric Emergency Medicine.
