NPPES file of Aug 9, 2026

Damian Rashad Chamberlain, MD

Allergy & Immunology Physician · San Antonio, TX

Damian Rashad Chamberlain, MD is an allergy & immunology physician with a practice address in San Antonio, Texas, and NPI 1033773338, issued on Apr 23, 2019. Check the license (Texas W3241, 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
1033773338
Name
Damian Rashad Chamberlain
Credential
MD
Primary taxonomy
Allergy & Immunology Physician 207K00000X
License numbers
W3241 TX
036.164939 IL
Self-reported in NPPES; status is on the state search
Practice location
2833 Babcock RD Ste 304, San Antonio, TX 78229
Phone
(210) 358-3108
Enumerated
Apr 23, 2019
Record last updated
Mar 4, 2026
Fax
(210) 702-4750
Medicare enrollment
Enrolled (PECOS I20260128004513); accepts 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 2833 Babcock RD Ste 304

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Prarthana Patel, MDAllergy & Immunology Physician1235710302
  2. Veronica Trevino Garcia, MSN, RN, C-FNPFamily Nurse Practitioner1477706794

Verify Damian Rashad Chamberlain in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license W3241
    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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72% fewer Medicare Part D claims than the average allergy & immunology physician in 2024

208 Medicare Part D claims for 75 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 46% of claims.

  1. Damian Chamberlain208
  2. Specialty average741

Most prescribed

  1. Trelegy Ellipta26 claims
  2. Prednisone18 claims
  3. Albuterol Sulfate Hfa17 claims
  4. Fluticasone-Salmeterol17 claims
  5. Azelastine Hcl15 claims
  6. Arnuity Ellipta11 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: $1,201.85

11 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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. Damian Chamberlain$1,201.85
  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. Community Medicine AssociatesSan Antonio, TX

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

Damian Rashad Chamberlain among 327 allergy & immunology physician records in Texas

Damian Rashad Chamberlain, MD 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 2019, is newer than 91% of them.

  • NPI issued2019 · 91% of these records are older, 6% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2019 · median 2003 among the 228 with a school on file
  • Record last updated2026 · 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. Fiona Adame, DOSan Antonio, TX 782291972168193
  2. Edward Brooks, M.D.San Antonio, TX 782291134211998
  3. Joseph Diaz, M.D.San Antonio, TX 782291417948241
  4. Theodore Freeman, M.D.San Antonio, TX 782291619977956
  5. Gordana Gligoric, MDSan Antonio, TX 782291063423119
  6. Robert Jacobs, M.D.San Antonio, TX 782291669536330
  7. Lukena Karkhanis, M.D.San Antonio, TX 782291700198165
  8. Marie Loera, M.S.N., R.N., F.N.P.San Antonio, TX 782291346533668

Common questions

What is Damian Rashad Chamberlain, MD's NPI number?

Damian Rashad Chamberlain, MD's National Provider Identifier (NPI) is 1033773338, issued on Apr 23, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Damian Rashad Chamberlain, MD located?

The NPPES record lists a practice address at 2833 Babcock RD Ste 304, San Antonio, TX, 78229. Phone: (210) 358-3108. Providers update this record themselves, so call before visiting.

How can I verify Damian Rashad Chamberlain, MD's license?

NPPES lists Texas license number W3241, 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 Damian Rashad Chamberlain, MD prescribe under Medicare Part D?

In 2024, Damian Rashad Chamberlain, MD had 208 Medicare Part D claims for 75 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.