HEATHER ANN KLECZEWSKI MD
NPI 1679799423
Pediatrics - Pediatric Emergency Medicine in San Antonio, TX
NPI Status: Active since April 18, 2007
Contact Information
333 N SANTA ROSA
SAN ANTONIO, TX
ZIP 78207
Phone: (210) 704-3030
- Individual
- Female
- Pediatrics
- Pediatric Emergency Medicine
- Accepts Insurance
- PECOS Enrolled
About HEATHER KLECZEWSKI
This page provides the complete NPI Profile along with additional information for Heather Kleczewski, a pediatrician established in San Antonio, Texas with a medical specialization in Pediatrics, focusing in pediatric emergency medicine . The healthcare provider is registered in the NPI registry with number 1679799423 assigned on April 2007. The practitioner's primary taxonomy code is 2080P0204X with license number N6426 (TX). The provider is registered as an individual and her NPI record was last updated March 2026.
- NPI
- 1679799423
- Provider Name
- HEATHER ANN KLECZEWSKI MD
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 333 N SANTA ROSA SAN ANTONIO, TX 78207
- Location Phone
- (210) 704-3030
- Mailing Address
- 333 N SANTA ROSA ST DALLAS, TX 75284
- Mailing Phone
- (210) 704-4581
- Is Sole Proprietor?
- No
- Enumeration Date
- 04-18-2007
- Last Update Date
- 03-16-2026
- Code Navigator
A pediatrician like Heather Kleczewski 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
- 5323 Harry Hines Blvd
Dallas, TX 75390
(214) 456-0771 - 1434 E Sonterra Blvd Ste 100
San Antonio, TX 78258
(210) 704-4708
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.
- N6426
- License State
- TX
- Taxonomy Description
- A pediatrician who has special qualifications to manage emergencies in infants and children.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Blue Advantage Bronze HMO? 204 - HMO
- Blue Advantage Bronze HMO? 301 - HMO
- Blue Advantage Bronze HMO? Standard - HMO
- Blue Advantage Gold HMO? 206 - HMO
- Blue Advantage Gold HMO? 603 - HMO
- Blue Advantage Gold HMO? Standard - HMO
- Blue Advantage Plus Bronze? 303 - POS
- Blue Advantage Plus Bronze? 305 - POS
- Blue Advantage Plus Bronze? Standard - POS
- Blue Advantage Plus Gold? 203 - POS
- Blue Advantage Plus Gold? 803 - POS
- Blue Advantage Plus Gold? Standard - POS
- Blue Advantage Plus Silver? 202 - POS
- Blue Advantage Plus Silver? 605 - POS
- Blue Advantage Plus Silver? Standard - POS
- Blue Advantage Security HMO? 200 - HMO
- Blue Advantage Silver HMO? 205 - HMO
- Blue Advantage Silver HMO? 801 - HMO
- Blue Advantage Silver HMO? Standard - HMO
- MyBlue Health Bronze? 402 - HMO
- CHRISTUS Bronze (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
- CHRISTUS Bronze + Dental & Vision (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
- CHRISTUS Bronze Essential - HMO
- CHRISTUS Bronze Essential (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
- CHRISTUS Bronze Essential + Dental & Vision (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
- CHRISTUS Bronze Essential Plus - HMO
- CHRISTUS Catastrophic (3 Free PCP visits) - HMO
- CHRISTUS Gold - HMO
- CHRISTUS Gold + Dental & Vision + Fitness ($0 Deductible, $5 PCP, $0 Generic Rx, $0 Virtual Urgent Care) - HMO
- CHRISTUS Gold + Fitness ($0 Deductible, $5 PCP, $0 Generic Rx, $0 Virtual Urgent Care) - HMO
- CHRISTUS Gold Essential - HMO
- CHRISTUS Gold Essential ($0 Rx Deductible, $5 PCP, $0 Virtual Urgent Care) - HMO
- CHRISTUS Gold Essential + Dental & Vision ($0 Rx Deductible, $5 PCP, $0 Virtual Urgent Care) - HMO
- CHRISTUS Gold Essential Plus - HMO
- CHRISTUS Gold Plus - HMO
- CHRISTUS Silver Essential - HMO
- CHRISTUS Silver Essential 70 ($5 PCP, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
- CHRISTUS Silver Essential 70 + Dental & Vision ($5 PCP, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
- CHRISTUS Silver Essential Plus - HMO
- CHRISTUS Standard Expanded Bronze - HMO
- Sendero Health Austin512 Silver / $40 PCP / $75 Specialist / $15 Generic Drugs / $0 Deductible - HMO
- Sendero Health Capital Silver / $40 PCP / $80 Specialist / $20 Generic Drugs - HMO
- Sendero Health Hill Country Gold / $30 PCP / $60 Specialist / $15 Generic Drugs - HMO
- Sendero Health Original Silver / $20 PCP + 2 $0 PCP Visits / $10 Generic Drugs - HMO
- Sendero Health Preferred Bronze / $25 PCP / $75 Specialist / $22 Generic Drugs - HMO
- Sendero Health Quality Care Bronze High Deductible / $50 PCP / $25 Generic Drugs / $100 Specialist - HMO
- Sendero Health Real Gold / $350 Deductible - HMO
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Medicare Participation & PECOS Enrollment Status
Heather Kleczewski 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 1679799423, we treat the final digit (3) 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 77. The final step is to find the difference between that total and the next multiple of ten (80 - 77 = 3).
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 77 is 80. 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.
SAN ANTONIO, TX 78207
SAN ANTONIO, TX 78207
SAN ANTONIO, TX 78207
SAN ANTONIO, TX 78207
SAN ANTONIO, TX 78207
SAN ANTONIO, TX 78207
SAN ANTONIO, TX 78207
SAN ANTONIO, TX 78207
SAN ANTONIO, TX 78207
SAN ANTONIO, TX 78207
SAN ANTONIO, TX 78207
SAN ANTONIO, TX 78207
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1679799423, enumerated as an "individual" on April 18, 2007.
The provider is located at 333 N SANTA ROSA SAN ANTONIO, TX 78207 and the phone number is (210) 704-3030.
Pediatrics with taxonomy code 2080P0204X and a focus in Pediatric Emergency Medicine.
The provider might be accepting Accepts: Blue Cross and Blue Shield of Texas, CHRISTUS. Please consult your insurance carrier or call the provider to verify.
