NPPES file of Aug 9, 2026

Savannah Leigh Sommerhalder, M.D.

Allergy & Immunology Physician · Cedar Park, TX

Savannah Leigh Sommerhalder, M.D. is an allergy & immunology physician with a practice address in Cedar Park, Texas, and NPI 1407234347, issued on May 12, 2015. Check the license (Texas R8276, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1407234347
Name
Savannah Leigh Sommerhalder
Credential
M.D.
Primary taxonomy
Allergy & Immunology Physician 207K00000X
License numbers
R8276 TX
BP1-0053413 TX
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
May 12, 2015
Record last updated
Apr 4, 2023
Fax
(855) 828-0878
Medicare enrollment
Enrolled (PECOS I20190530001681); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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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.

  1. Haley Overstreet, M.D.Allergy & Immunology Physician1700107323

Verify Savannah Leigh Sommerhalder in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license R8276
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

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86% fewer Medicare Part D claims than the average allergy & immunology physician in 2024

102 Medicare Part D claims for 41 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.

  1. Savannah Sommerhalder102
  2. Specialty average741

Most prescribed

  1. Ipratropium Bromide18 claims
  2. Azelastine Hcl14 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: $211.26

11 payments; by number, the most common kind was food and beverage; the largest payer was Takeda Pharmaceuticals U.S.A., Inc. 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.

  1. Savannah Sommerhalder$211.26
  2. Specialty average$8,321.81

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

  1. Sinus And Allergy Specialists OF TexasPlano, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Savannah Leigh Sommerhalder among 327 allergy & immunology physician records in Texas

Savannah Leigh Sommerhalder, 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 2015, is newer than 82% of them.

  • NPI issued2015 · 82% of these records are older, 15% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2015 · median 2003 among the 228 with a school on file
  • Record last updated2023 · 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.

The 8 allergy & immunology physician records with the nearest ZIP codes

  1. Ramya Balijepally, MDCedar Park, TX 786131760945794
  2. Haley Overstreet, M.D.Cedar Park, TX 786131700107323
  3. Kelly Simpson, MDCedar Park, TX 786131356387872
  4. Nikki Patel, M.D.Kyle, TX 786401801030135
  5. Maya Lele, M.D.Marble Falls, TX 786541902249352
  6. Anthony Henry, M.D.Round Rock, TX 786641245232487
  7. Anna O'Connor, MDRound Rock, TX 786641053931345
  8. Sumit Bose, M.D.Round Rock, TX 786651306163902

Common questions

What is Savannah Leigh Sommerhalder, M.D.'s NPI number?

Savannah Leigh Sommerhalder, M.D.'s National Provider Identifier (NPI) is 1407234347, issued on May 12, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Savannah Leigh Sommerhalder, 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 Savannah Leigh Sommerhalder, M.D.'s license?

NPPES lists Texas license number R8276, 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 Savannah Leigh Sommerhalder, M.D. prescribe under Medicare Part D?

In 2024, Savannah Leigh Sommerhalder, M.D. had 102 Medicare Part D claims for 41 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.