Haley C. Overstreet, M.D.
Allergy & Immunology Physician · Cedar Park, TX
Haley C. Overstreet, M.D. is an allergy & immunology physician with a practice address in Cedar Park, Texas, and NPI 1700107323, issued on Jun 17, 2010. Check the license (Texas P8400, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Haley C. Overstreet
- Credential
- M.D.
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License numbers
- P8400 TX
L.3306 AL
Self-reported in NPPES; status is on the state search - Practice location
- 1335 E Whitestone Blvd Ste 120, Cedar Park, TX 78613
- Phone
- (512) 222-5856
- Enumerated
- Jun 17, 2010
- Record last updated
- Feb 26, 2024
- Medicare enrollment
- Enrolled (PECOS I20140220000770); may accept Medicare assignment
- Medical or professional school
- University Of Alabama School Of Medicine, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 327 in Texas → Look up another NPI →
Also registered at 1335 E Whitestone Blvd Ste 120
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Savannah Sommerhalder, M.D.Allergy & Immunology Physician1407234347
Verify Haley C. Overstreet in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license P8400Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
233 Medicare Part D claims for 81 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims.
Most prescribed
- Ipratropium Bromide32 claims
- Epinephrine29 claims
- Montelukast Sodium21 claims
- Albuterol Sulfate Hfa16 claims
- Cefdinir14 claims
- Dupixent Pen11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $663.06
24 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 2,496 providers of this specialty with any payment received $8,321.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Sinus And Allergy Specialists OF TexasRound Rock, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Haley C. Overstreet among 327 allergy & immunology physician records in Texas
Haley C. Overstreet, M.D. is one of 327 allergy & immunology physician records with a practice address in Texas. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 70% of them.
- NPI issued2010 · 70% of these records are older, 26% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2009 · median 2003 among the 228 with a school on file
- Record last updated2024 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in Texas
There are 327 allergy & immunology physician records in Texas.
All 327 in Texas → Every provider in Cedar Park → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Ramya Balijepally, MDCedar Park, TX 786131760945794
- Kelly Simpson, MDCedar Park, TX 786131356387872
- Savannah Sommerhalder, M.D.Cedar Park, TX 786131407234347
- Nikki Patel, M.D.Kyle, TX 786401801030135
- Maya Lele, M.D.Marble Falls, TX 786541902249352
- Anthony Henry, M.D.Round Rock, TX 786641245232487
- Anna O'Connor, MDRound Rock, TX 786641053931345
- Sumit Bose, M.D.Round Rock, TX 786651306163902
Common questions
What is Haley C. Overstreet, M.D.'s NPI number?
Haley C. Overstreet, M.D.'s National Provider Identifier (NPI) is 1700107323, issued on Jun 17, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Haley C. Overstreet, M.D. located?
The NPPES record lists a practice address at 1335 E Whitestone Blvd Ste 120, Cedar Park, TX, 78613. Phone: (512) 222-5856. Providers update this record themselves, so call before visiting.
How can I verify Haley C. Overstreet, M.D.'s license?
NPPES lists Texas license number P8400, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Haley C. Overstreet, M.D. prescribe under Medicare Part D?
In 2024, Haley C. Overstreet, M.D. had 233 Medicare Part D claims for 81 beneficiaries; the average among allergy & immunology physician prescribers was 741. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.