JEFFREY STEWART HALLETT M.D.
NPI 1275683823
Allergy & Immunology in Round Rock, TX
NPI Status: Active since January 12, 2007
Contact Information
16000 PARK VALLEY DRIVE
SUITE #130
ROUND ROCK, TX
ZIP 78681
Phone: (512) 244-3422
Fax: (512) 255-6829
- Individual
- Male
- Allergy & Immunology
- Accepts Insurance
- PECOS Enrolled
About JEFFREY HALLETT
This page provides the complete NPI Profile along with additional information for Jeffrey Hallett, a provider established in Round Rock, Texas with a medical specialization in Allergy & Immunology. The healthcare provider is registered in the NPI registry with number 1275683823 assigned on January 2007. The practitioner's primary taxonomy code is 207K00000X with license number H1588 (TX). The provider is registered as an individual and his NPI record was last updated 18 years ago.
- NPI
- 1275683823
- Provider Name
- JEFFREY STEWART HALLETT M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 16000 PARK VALLEY DRIVE SUITE #130 ROUND ROCK, TX 78681
- Location Phone
- (512) 244-3422
- Location Fax
- (512) 255-6829
- Mailing Address
- 16000 PARK VALLEY DRIVE SUITE #130 ROUND ROCK, TX 78681
- Mailing Phone
- (512) 244-3422
- Mailing Fax
- (512) 255-6829
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 01-12-2007
- Last Update Date
- 07-08-2007
- 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
Allergy & Immunology
- Taxonomy Code
- 207K00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- H1588
- License State
- TX
- Taxonomy Description
- An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Gold 10 Advanced: $0 PCP + Aetna network + $0 walk-in clinic + Adult Dental + Vision - HMO
- Gold 3 Advanced: Aetna network + $0 walk-in clinic + $0 CVS Health Virtual Care 24/7 - HMO
- Gold 3 Advanced: Aetna network + $0 walk-in clinic + Adult Dental + Vision - HMO
- Gold 4 Advanced: $0 PCP + Aetna network + $0 walk-in clinic + $0 CVS Health Virtual Care 24/7 - HMO
- Gold S: Aetna network + $0 walk-in clinic + $0 CVS Health Virtual Care 24/7 - HMO
- Silver 10 Advanced: $0 PCP + Aetna network + $0 walk-in clinic + $0 CVS Health Virtual Care 24/7 - HMO
- Silver 10 Advanced: $0 PCP + Aetna network + $0 walk-in clinic + Adult Dental + Vision - HMO
- Silver 5 Advanced: Aetna network + $0 walk-in clinic + $0 CVS Health Virtual Care 24/7 - HMO
- Silver S: Aetna network + $0 walk-in clinic + $0 CVS Health Virtual Care 24/7 - HMO
- Silver S: Aetna network + $0 walk-in clinic + $0 CVS Health Virtual Care 24/7 + Adult Dental+Vision - HMO
- Imperial Preferred Bronze - HMO
- Imperial Preferred Gold - HMO
- Imperial Preferred Gold Zero - HMO
- Imperial Preferred Silver - HMO
- Imperial Standard Bronze - HMO
- Imperial Standard Gold - HMO
- Imperial Standard Silver - HMO
- UHC Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care) - HMO
- UHC Bronze Standard - HMO
- UHC Bronze Value ($0 Virtual Urgent Care, $3 Tier 2 Rx) - HMO
- UHC Gold Advantage ($0 Virtual Urgent Care, $3 Tier 2 Rx) - HMO
- UHC Gold Advantage+ ($0 Virtual Urgent Care, $3 Tier 2 Rx, Dental + Vision) - HMO
- UHC Gold Standard - HMO
- UHC Gold Standard $0 Indiv Ded ($0 Virtual Urgent Care) - HMO
- UHC Silver Advantage ($0 Virtual Urgent Care, $3 Tier 2 Rx) - HMO
- UHC Silver Advantage+ ($0 Virtual Urgent Care, $3 Tier 2 Rx, Dental + Vision) - HMO
- UHC Silver Standard - HMO
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Additional Identifiers
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
| Identifier | Type / Code | Identifier State | Identifier Issuer |
|---|---|---|---|
| B23287 | MEDICARE UPIN (02) | ||
| 00DU91 | MEDICARE ID-TYPE UNSPECIFIED (04) | ||
| 00DU91 | OTHER (01) | TX | BLUE CROSS BLUE SHIELD |
Medicare Participation & PECOS Enrollment Status
Jeffrey Hallett 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 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 | 2 | 7 | 5 | 6 | 8 | 3 | 8 | 2 | 3 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 2 | 14 | 5 | 12 | 8 | 6 | 8 | 4 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 2 + 1 + 4 + 5 + 1 + 2 + 8 + 6 + 8 + 4 + 24 = 67 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 70 - 67 = 3 | 3 | ||||||||
The NPI number 1275683823 is valid because the calculated check digit 3 using the Luhn validation algorithm matches the last digit of the original NPI number.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1275683823, enumerated in the NPI registry as an "individual" on January 12, 2007
The provider is located at 16000 Park Valley Drive Suite #130 Round Rock, Tx 78681 and the phone number is (512) 244-3422
The provider's speciality is Allergy & Immunology with taxonomy code 207K00000X
The provider might be accepting Accepts: Aetna CVS Health, Imperial Insurance Companies,. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.
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.
This NPI record was last updated on January 12, 2007. 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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