David Sommerhalder
Hematology & Oncology Physician · San Antonio, TX
David Sommerhalder is a hematology & oncology physician with a practice address in San Antonio, Texas, and NPI 1821417270, issued on Apr 14, 2014. Check the license (Texas S5270, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- David Sommerhalder
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- S5270 TX
S5270 TN
Self-reported in NPPES; status is on the state search - Practice location
- 2829 Babcock RD Ste 300, San Antonio, TX 78229
- Phone
- (210) 580-9500
- Enumerated
- Apr 14, 2014
- Record last updated
- Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (210) 568-4397
- Medicaid ID
- 417185201 TX
- Medicare enrollment
- Enrolled (PECOS I20200818003770); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 922 in Texas → Look up another NPI →
Also registered at 2829 Babcock RD Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ildefonso Rodriguez-Rivera, M.D.Hematology & Oncology Physician1861783185
- Leslie Smetzer, RNOncology Registered Nurse1851946354
- Michael Song, MDHematology & Oncology Physician1699262246
- Anthony TolcherMedical Oncology Physician1184627663
Verify David Sommerhalder in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license S5270Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
26% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
649 Medicare Part D claims for 82 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 61 claims were for opioids.
Most prescribed
- Levothyroxine Sodium44 claims
- Prednisone41 claims
- Gabapentin31 claims
- Doxycycline Monohydrate24 claims
- Granisetron Hcl24 claims
- Eliquis22 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.
The MIPS final score for 2023 (Medicare payment program): 89.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $2,926.89
89 payments; by number, the most common kind was food and beverage; the largest payer was Siemens Medical Solutions USA, Inc. The 8,560 providers of this specialty with any payment received $7,481.41 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
- Texas Oncology PASan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Sommerhalder among 922 hematology & oncology physician records in Texas
David Sommerhalder is one of 922 hematology & oncology physician records with a practice address in Texas. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 76% of them.
- NPI issued2014 · 76% of these records are older, 20% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated2013 · median 2004 among the 691 with a school on file
- Record last updated2021 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Texas
There are 922 hematology & oncology physician records in Texas.
All 922 in Texas → Every provider in San Antonio → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Georg Aue, MDSan Antonio, TX 782291215928080
- David Boldt, M.D.San Antonio, TX 782291447253042
- Jose Cruz, MDSan Antonio, TX 782291720043524
- Sreedevi Daggubati, MDSan Antonio, TX 782291952373656
- Timothy Fenske, MDSan Antonio, TX 782291104877935
- Francis Giles, M.D.San Antonio, TX 782291750480950
- Gregory Guzley, MDSan Antonio, TX 782291427020114
- David Haile, MDSan Antonio, TX 782291700993862
Common questions
What is David Sommerhalder's NPI number?
David Sommerhalder's National Provider Identifier (NPI) is 1821417270, issued on Apr 14, 2014. An NPI identifies a provider in billing; it is not a license.
Where is David Sommerhalder located?
The NPPES record lists a practice address at 2829 Babcock RD Ste 300, San Antonio, TX, 78229. Phone: (210) 580-9500. Providers update this record themselves, so call before visiting.
How can I verify David Sommerhalder's license?
NPPES lists Texas license number S5270, 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 David Sommerhalder prescribe under Medicare Part D?
In 2024, David Sommerhalder had 649 Medicare Part D claims for 82 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is David Sommerhalder's MIPS final score?
The 2023 MIPS final score is 89.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.