Thomasina Blackwater, MD
Family Medicine Physician · Los Angeles, CA
Thomasina Blackwater, MD is a family medicine physician with a practice address in Los Angeles, California, and NPI 1356915037, issued on May 17, 2021. Check the license (California A203016, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thomasina Blackwater
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A203016 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1300 N Mission RD FL 2, Los Angeles, CA 90033
- Phone
- (323) 409-8255
- Enumerated
- May 17, 2021
- Record last updated
- Jul 21, 2025
- Medicare enrollment
- Enrolled (PECOS I20250909002178); may accept Medicare assignment
- Entity
- Type 1 · individual
Verify Thomasina Blackwater in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A203016Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average family medicine physician in 2024
182 Medicare Part D claims for 32 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium26 claims
- Lisinopril11 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: $65.99
3 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 55,478 providers of this specialty with any payment received $902.55 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.
829 family medicine physician records list a practice address in Los Angeles
They are 829 of the 69,537 NPPES records with a practice address in Los Angeles, and 17,133 family medicine physician records in California.
All 829 in Los Angeles → All 17,133 in California → Every provider in Los Angeles →
Other family medicine physician records in California
- Omer Aba-Omer, MDSanta Monica, CA1649702093
- Michelle Ababa, MDWilmington, CA1710922513
- Anna Tzeitel Abalos, MDRoseville, CA1720200017
- Adan Abarca, MDAnaheim, CA1760553689
- Vanessa Abarca, DOVentura, CA1952040859
- Lorraine Abate, M.D.Sacramento, CA1104840008
- Robert Abatecola, MDCastro Valley, CA1669551719
- Romeo Abaya, M.D.Cottonwood, CA1598053506
- Effiem Abbah, MD, MPHSan Francisco, CA1821185133
- Khuzeman Abbasi, MDSanta Rosa, CA1841979952
Common questions
What is Thomasina Blackwater, MD's NPI number?
Thomasina Blackwater, MD's National Provider Identifier (NPI) is 1356915037, issued on May 17, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Thomasina Blackwater, MD located?
The NPPES record lists a practice address at 1300 N Mission RD FL 2, Los Angeles, CA, 90033. Phone: (323) 409-8255. Providers update this record themselves, so call before visiting.
How can I verify Thomasina Blackwater, MD's license?
NPPES lists California license number A203016, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thomasina Blackwater, MD prescribe under Medicare Part D?
In 2024, Thomasina Blackwater, MD had 182 Medicare Part D claims for 32 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.