Jacob T. Ark, M.D.
Urology Physician · Saint Louis, MO
Jacob T. Ark, M.D. is a urology physician with a practice address in Saint Louis, Missouri, and NPI 1891053716, issued on Apr 28, 2012. Check the license (Missouri 2018009509, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Jacob T. Ark
- Credential
- M.D.
- Primary taxonomy
- Urology Physician 208800000X
- License numbers
- 2018009509 MO
36145240 IL
Self-reported in NPPES; status is on the state search - Practice location
- 12855 N 40 Dr Ste 375, Saint Louis, MO 63141
- Phone
- (314) 567-6071
- Enumerated
- Apr 28, 2012
- Record last updated
- Dec 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180731001393); accepts Medicare assignment
- Medical or professional school
- Vanderbilt University School Of Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest urology physician records → All 266 in Missouri → Look up another NPI →
Also registered at 12855 N 40 Dr Ste 375
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mustafa AhmedMedical Physician Assistant1548881659
- Louis Aliperti, M.D.Urology Physician1861810350
- Kierra Calico, APRNFamily Nurse Practitioner1003567215
- Erin Doser, AGNP-CAdult Health Nurse Practitioner1588019715
- Robert Petrossian, MDUrology Physician1912436015
- Rachel Porter, NPAdult Health Nurse Practitioner1033578125
Verify Jacob T. Ark 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 2018009509Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% fewer Medicare Part D claims than the average urology physician in 2024
1,209 Medicare Part D claims for 261 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. Brand-name drugs were 41% of claims. 46 claims were for opioids.
Most prescribed
- Xtandi229 claims
- Finasteride219 claims
- Tamsulosin Hcl179 claims
- Orgovyx68 claims
- Gemtesa63 claims
- Nubeqa52 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: $1,410.84
61 payments; by number, the most common kind was food and beverage; the largest payer was Sumitomo Pharma America, Inc. The 9,340 providers of this specialty with any payment received $3,800.04 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
- Urology OF St Louis IncSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jacob T. Ark among 266 urology physician records in Missouri
Jacob T. Ark, M.D. is one of 266 urology physician records with a practice address in Missouri. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 68% of them.
- NPI issued2012 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2012 · median 2004 among the 182 with a school on file
- Record last updated2021 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in Missouri
There are 266 urology physician records in Missouri.
All 266 in Missouri → Every provider in Saint Louis → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Kent Adkins, MDSaint Louis, MO 631411962460238
- Gautum Agarwal, MDSaint Louis, MO 631411780880633
- Luis Anglo, M.D.Saint Louis, MO 631411437112547
- Christopher Arett, MDSaint Louis, MO 631411972600559
- Travis Bullock, MDSaint Louis, MO 631411699810507
- Leonard Gaum, MDSaint Louis, MO 631411245288760
- David Keetch, MDSaint Louis, MO 631411184608143
- Thomas Scully, MDSaint Louis, MO 631411285692608
Common questions
What is Jacob T. Ark, M.D.'s NPI number?
Jacob T. Ark, M.D.'s National Provider Identifier (NPI) is 1891053716, issued on Apr 28, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Jacob T. Ark, M.D. located?
The NPPES record lists a practice address at 12855 N 40 Dr Ste 375, Saint Louis, MO, 63141. Phone: (314) 567-6071. Providers update this record themselves, so call before visiting.
How can I verify Jacob T. Ark, M.D.'s license?
NPPES lists Missouri license number 2018009509, 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 Jacob T. Ark, M.D. prescribe under Medicare Part D?
In 2024, Jacob T. Ark, M.D. had 1,209 Medicare Part D claims for 261 beneficiaries; the average among urology physician prescribers was 1,340. 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.