NPPES file of Aug 9, 2026

Dulce M. Cruz Oliver, MD

Geriatric Medicine (Internal Medicine) Physician · Saint Louis, MO

Dulce M. Cruz Oliver, MD is a geriatric medicine (internal medicine) physician with a practice address in Saint Louis, Missouri, and NPI 1447453691, issued on Jun 6, 2007. Check the license (Missouri 2010010714, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; 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
1447453691
Name
Dulce M. Cruz Oliver
Credential
MD
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License numbers
2010010714 MO
D83885 MD
25950-R PR
Self-reported in NPPES; status is on the state search
Practice location
3660 Vista Ave # 204, Saint Louis, MO 63110
Phone
(314) 977-6055
Enumerated
Jun 6, 2007
Record last updated
Apr 3, 2025
Medicare enrollment
Enrolled (PECOS I20170911001572); may accept Medicare assignment
Medical or professional school
University Of Puerto Rico School Of Medicine, 2005
Telehealth
Offers telehealth (CMS)
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 3660 Vista Ave # 204

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

  1. Hassan Elsiddig, M.D.Geriatric Medicine (Internal Medicine) Physician1558563890

Verify Dulce M. Cruz Oliver in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license 2010010714
    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 Missouri license search

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74% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

1,119 Medicare Part D claims for 105 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. 57 claims were for opioids.

  1. Dulce Cruz Oliver1,119
  2. Specialty average4,246

Most prescribed

  1. Atorvastatin Calcium56 claims
  2. Levothyroxine Sodium56 claims
  3. Escitalopram Oxalate42 claims
  4. Mirtazapine35 claims
  5. Tamsulosin Hcl31 claims
  6. Quetiapine Fumarate30 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.

Bills Medicare through 2 group practices

  1. Johns Hopkins UniversityBaltimore, MD
  2. Johns Hopkins UniversityBaltimore, MD

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

Dulce M. Cruz Oliver among 75 geriatric medicine (internal medicine) physician records in Missouri

Dulce M. Cruz Oliver, MD is one of 75 geriatric medicine (internal medicine) physician records with a practice address in Missouri. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 60% of them.

  • NPI issued2007 · 60% of these records are older, 23% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 45% of these records are
  • Graduated2005 · median 1997 among the 34 with a school on file
  • Record last updated2025 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in Missouri

There are 75 geriatric medicine (internal medicine) physician records in Missouri.

The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes

  1. Stanley Birge, MDSaint Louis, MO 631101205854908
  2. Margaret Brubaker, MDSaint Louis, MO 631101629697180
  3. Lenise Cummings-Vaughn, MDSaint Louis, MO 631101336301613
  4. Hassan Elsiddig, M.D.Saint Louis, MO 631101558563890
  5. Ramzi Hajjar, M.D.Saint Louis, MO 631101386721744
  6. John Morley, MDSt Louis, MO 631101851302418
  7. Horace Perry, M.D.Saint Louis, MO 631101245317510
  8. Dominic Reeds, MDSaint Louis, MO 631101669495586

Common questions

What is Dulce M. Cruz Oliver, MD's NPI number?

Dulce M. Cruz Oliver, MD's National Provider Identifier (NPI) is 1447453691, issued on Jun 6, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Dulce M. Cruz Oliver, MD located?

The NPPES record lists a practice address at 3660 Vista Ave # 204, Saint Louis, MO, 63110. Phone: (314) 977-6055. Providers update this record themselves, so call before visiting.

How can I verify Dulce M. Cruz Oliver, MD's license?

NPPES lists Missouri license number 2010010714, 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 Dulce M. Cruz Oliver, MD prescribe under Medicare Part D?

In 2024, Dulce M. Cruz Oliver, MD had 1,119 Medicare Part D claims for 105 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.