Daniel J. Maestas, MD
Family Medicine Physician · Saint Louis, MO
Daniel J. Maestas, MD is a family medicine physician with a practice address in Saint Louis, Missouri, and NPI 1407823511, issued on Mar 7, 2006. Check the license (Missouri R2J10, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Daniel J. Maestas
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- R2J10 MO
Self-reported in NPPES; status is on the state search - Practice location
- 8888 Ladue RD Ste 210, Saint Louis, MO 63124
- Phone
- (314) 862-5044
- Enumerated
- Mar 7, 2006
- Record last updated
- Sep 22, 2025
- Medicaid ID
- 1407823511 MO
- Medicare enrollment
- Enrolled (PECOS I20070531000164); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 1987
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,991 in Missouri → Look up another NPI →
Also registered at 8888 Ladue RD Ste 210
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tiana Butler, AGNP-CNurse Practitioner1164203303
- Candace Counts, N.P.Family Nurse Practitioner1881044402
- Laurie Giltner, FNPNurse Practitioner1932584075
- Sukepma Giri, M.DFamily Medicine Physician1700014651
- Benjamin Goldstein, MDInternal Medicine Physician1811919228
- Raffy Gutman, M.D.Family Medicine Physician1861980872
Verify Daniel J. Maestas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license R2J10Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% fewer Medicare Part D claims than the average family medicine physician in 2024
3,346 Medicare Part D claims for 420 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 216 claims were for opioids.
Most prescribed
- Amlodipine Besylate136 claims
- Atorvastatin Calcium107 claims
- Hydrocodone-Acetaminophen100 claims
- Losartan Potassium83 claims
- Levothyroxine Sodium81 claims
- Metformin Hcl64 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: $1,403.93
73 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. 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.
Bills Medicare through 2 group practices
- Aging Well Health Care, LLCSaint Louis, MO
- Physician Groups LCSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Daniel J. Maestas among 2,991 family medicine physician records in Missouri
Daniel J. Maestas, MD is one of 2,991 family medicine physician records with a practice address in Missouri. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 52% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1987 · median 2006 among the 1,778 with a school on file
- Record last updated2025 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in Missouri
There are 2,991 family medicine physician records in Missouri.
All 2,991 in Missouri → Every provider in Saint Louis → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Michael Barron, M.D.Saint Louis, MO 631241326063991
- Sukepma Giri, M.DSaint Louis, MO 631241700014651
- Raffy Gutman, M.D.Saint Louis, MO 631241861980872
- Jacqueline Hayes, M. D.Saint Louis, MO 631241134275662
- David Kantor, D.O.Saint Louis, MO 631241801994926
- David Campbell, M.D.Saint Louis, MO 631251801872254
- Babu Dandamudi, MDSaint Louis, MO 631251386645430
- Hudda Hantush, MDSaint Louis, MO 631251780646059
Common questions
What is Daniel J. Maestas, MD's NPI number?
Daniel J. Maestas, MD's National Provider Identifier (NPI) is 1407823511, issued on Mar 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Daniel J. Maestas, MD located?
The NPPES record lists a practice address at 8888 Ladue RD Ste 210, Saint Louis, MO, 63124. Phone: (314) 862-5044. Providers update this record themselves, so call before visiting.
How can I verify Daniel J. Maestas, MD's license?
NPPES lists Missouri license number R2J10, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Daniel J. Maestas, MD prescribe under Medicare Part D?
In 2024, Daniel J. Maestas, MD had 3,346 Medicare Part D claims for 420 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.