Dr. Haley C Overstreet , MD
Allergy & Immunology • Cedar Park, TX
1335 E Whitestone Blvd Ste 120
Cedar Park, TX 786137598
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Haley Overstreet is listed in NPPES under Allergy & Immunology.
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NPI assigned on June 17, 2010; this date does not establish years in practice.
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Published CMS data list 6,524 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 95004 — Test for allergy using allergenic extract: 2,884 service units.
- 95117 — Professional service for multiple injections of allergen: 1,800 service units.
- 95024 — Test for allergy using allergenic extract injected into skin: 1,386 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 8 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 123 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Ipratropium Bromide — 32 prescription fills, including refills.
- Epinephrine — 29 prescription fills, including refills.
- Montelukast Sodium — 21 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 6 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 75% of clinicians listed under Allergy & Immunology in Texas (2024, 197 clinicians with data). Median for this group: 2,676. Middle half: 801 to 6,471.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 3,581 in 2020 to 6,524 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
1335 E Whitestone Blvd Ste 120
Cedar Park, TX 786137598
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Sinus And Allergy Specialists Of Texas. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
University Of Alabama School Of Medicine
2009
What Public CMS Data Show
Allergy & Immunology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
329 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $98,318 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $74,756 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
30-day fills
144 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$55,193 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $873.47 across 38 records.
By nature of payment
- Food and Beverage: $839.47 across 37 records.
- Education: $34.00 across 1 record.
Reporting-company totals (3 largest of 10)
- AstraZeneca Pharmaceuticals LP: $176.64 across 10 records.
- ARS Pharmaceuticals Operations, Inc.: $160.47 across 8 records.
- Novartis Pharmaceuticals Corporation: $160.44 across 7 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
17 years (graduated 2009)
CMS Doctors and Clinicians data list 2009 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2010
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
May accept Medicare assignment
CMS data show this clinician may accept Medicare assignment. Clinicians who do not always accept assignment can decide case by case.
Ask the office before your visit. If a clinician does not accept assignment for a service, they can charge up to 15% more than the Medicare-approved amount, and you may be asked to pay the full amount at the visit.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Overstreet has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Overstreet as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Cedar Park and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 75% of clinicians listed under Allergy & Immunology in Texas (2024, 197 clinicians with data). Median for this group: 2,676. Middle half: 801 to 6,471.
Too few clinicians listed under Allergy & Immunology in Cedar Park have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 75% of clinicians listed under Allergy & Immunology in Texas (2024, 197 clinicians with data). Median for this group: $43,168. Middle half: $18,546 to $93,079.
Too few clinicians listed under Allergy & Immunology in Cedar Park have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 80% of clinicians listed under Allergy & Immunology in Texas (2024, 197 clinicians with data). Median for this group: $33,133. Middle half: $13,770 to $69,654.
Too few clinicians listed under Allergy & Immunology in Cedar Park have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
Fewer Part D prescriptions than 75% of clinicians listed under Allergy & Immunology in Texas (2024, 227 clinicians with data). Median for this group: 402. Middle half: 165 to 746.
Too few clinicians listed under Allergy & Immunology in Cedar Park have Medicare Part D data for 2024 to compare.
Part D drug cost
A lower Part D drug cost than 65% of clinicians listed under Allergy & Immunology in Texas (2024, 227 clinicians with data). Median for this group: $120,127. Middle half: $33,528 to $262,814.
Too few clinicians listed under Allergy & Immunology in Cedar Park have Medicare Part D data for 2024 to compare.
4 active clinicians are listed under Allergy & Immunology with a practice address in Cedar Park, TX (328 in Texas).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 82% from 3,581 in 2020 to 6,524 in 2024.
- 2020: 3,581
- 2021: 4,355
- 2022: 5,469
- 2023: 2,146
- 2024: 6,524
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Medicare-allowed amount
Medicare-allowed amount increased 194% from $33,424 in 2020 to $98,318 in 2024.
- 2020: $33,424
- 2021: $45,598
- 2022: $76,057
- 2023: $28,858
- 2024: $98,318
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Paid by Medicare
Paid by Medicare increased 196% from $25,256 in 2020 to $74,756 in 2024.
- 2020: $25,256
- 2021: $35,702
- 2022: $58,083
- 2023: $21,738
- 2024: $74,756
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 64% from 75 in 2020 to 123 in 2024.
- 2020: 75
- 2021: 106
- 2022: 74
- 2023: 88
- 2024: 123
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30-day fills
30-day fills increased 51% from 96 in 2020 to 144 in 2024.
- 2020: 96
- 2021: 120
- 2022: 79
- 2023: 93
- 2024: 144
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Part D drug cost
Part D drug cost increased 20% from $45,891 in 2020 to $55,193 in 2024.
- 2020: $45,891
- 2021: $45,259
- 2022: $103,285
- 2023: $53,853
- 2024: $55,193
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $973.48 in 2021 to $873.47 in 2025.
- 2021: $973.48
- 2022: $1,035.15
- 2023: $726.34
- 2024: $663.06
- 2025: $873.47
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): 38 records totaling $873.47.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Inspire Medical Systems, Inc. |
Food and Beverage
In-kind items and services
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INSPIRE | General | $61.78 |
| Regeneron Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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DUPIXENT | General | $38.01 |
| Amgen Inc. |
Education
In-kind items and services
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— | General | $34.00 |
| Genentech, Inc. |
Food and Beverage
In-kind items and services
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Xolair | General | $33.41 |
| Inspire Medical Systems, Inc. |
Food and Beverage
In-kind items and services
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INSPIRE | General | $32.39 |
| ARS Pharmaceuticals Operations, Inc. |
Food and Beverage
In-kind items and services
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NEFFY | General | $30.75 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
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XOLAIR | General | $30.14 |
| Optinose US, Inc. |
Food and Beverage
In-kind items and services
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Xhance | General | $29.09 |
| ARS Pharmaceuticals Operations, Inc. |
Food and Beverage
In-kind items and services
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NEFFY | General | $29.04 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
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Rhapsido | General | $28.14 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
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NUCALA | General | $28.09 |
| Regeneron Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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DUPIXENT | General | $27.42 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
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— | General | $27.20 |
| Optinose US, Inc. |
Food and Beverage
In-kind items and services
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Xhance | General | $26.04 |
| Kedrion Biopharma, Inc. |
Food and Beverage
Cash or cash equivalent
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Albuked | General | $23.34 |
| ARS Pharmaceuticals Operations, Inc. |
Food and Beverage
In-kind items and services
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NEFFY | General | $23.28 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
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— | General | $22.56 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
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Rhapsido | General | $21.76 |
| ARS Pharmaceuticals Operations, Inc. |
Food and Beverage
In-kind items and services
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NEFFY | General | $21.64 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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FASENRA | General | $20.67 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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TEZSPIRE | General | $20.14 |
| ARS Pharmaceuticals Operations, Inc. |
Food and Beverage
In-kind items and services
|
NEFFY | General | $20.13 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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AIRSUPRA | General | $20.07 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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FASENRA | General | $19.95 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
FASENRA | General | $19.43 |
(top 25 shown)
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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95004
Test for allergy using allergenic extract
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2,884 | 49 | $18.50 | $3.38 |
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95117
Professional service for multiple injections of allergen
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1,800 | 171 | $35.00 | $11.27 |
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95024
Test for allergy using allergenic extract injected into skin
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1,386 | 117 | $28.50 | $7.41 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
180 | 136 | $330.00 | $118.47 |
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31231
Diagnostic exam of nasal passages using an endoscope
|
107 | 94 | $387.00 | $174.21 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
|
92 | 92 | $501.00 | $154.26 |
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94060
Test to measure expiratory airflow and volume changes before and after medication administration
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51 | 40 | $189.00 | $35.77 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
24 | 20 | $230.00 | $84.70 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Ipratropium Bromide | Ipratropium Bromide | 32 | 570 | $827.88 | 16 |
| Epinephrine | Epinephrine | 29 | 602 | $5,143.88 | 25 |
| Montelukast Sodium | Montelukast Sodium | 21 | 1,164 | $171.30 | — |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 16 | 289 | $277.69 | 11 |
| Cefdinir | Cefdinir | 14 | 164 | $398.47 | 14 |
| Dupixent Pen | Dupilumab | 11 | 364 | $48,373.32 | — |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2024-02-26NUCC Taxonomy Code: 207K00000X
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.
NUCC Taxonomy Code: 207Q00000X
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
NUCC Taxonomy Code: 207Q00000X
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - FAMILY PRACTICE
I20140220000770
TX
8426288358
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Sinus And Allergy Specialists Of Texas
1780 Round Rock Ave, Round Rock, TX 786814069
Phone: 5122225856
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physician Assistant
Physician Assistant (Certified)
Physician Assistant
Allergy & Immunology
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1335 E WHITESTONE BLVD STE 120, CEDAR PARK, TX 786137598 (Tel: 5122225856)
Registered at 5929 BALCONES DR STE 200, AUSTIN, TX 787314280 (Tel: 5125501800)
NPI status registered as active in NPPES database
Registered at 450 CYPRESS CREEK RD # 5, CEDAR PARK, TX 786134195 (Tel: 5122491400)
Registered at 450 CYPRESS CREEK RD # 5, CEDAR PARK, TX 786134195 (Tel: 5122491400)
Recorded as HALEY OVERSTREET, M.D.
Family Medicine (license number reported to NPPES: AL L.3306)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Allergy & Immunology Specialists in Cedar Park
Healthcare providers in Cedar ParkMailing Address
5929 Balcones Dr Ste 200
Austin, TX 787314280
Phone: 5125501800