Marc Randall Hammerman, MD
Nephrology Physician · Saint Louis, MO
Marc Randall Hammerman, MD is a nephrology physician with a practice address in Saint Louis, Missouri, and NPI 1982622676, issued on Jul 18, 2006. Check the license (Missouri R7960, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Marc Randall Hammerman
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- R7960 MO
Self-reported in NPPES; status is on the state search - Practice location
- 4570 Childrens PL, Saint Louis, MO 63110
- Phone
- (314) 362-7601
- Enumerated
- Jul 18, 2006
- Record last updated
- Oct 22, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (314) 362-0186
- Medicaid IDs
- 0280272040 IL
054010183 MO - Entity
- Type 1 · individual
8 nearest nephrology physician records → All 285 in Missouri → Look up another NPI →
Also registered at 4570 Childrens PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joyce Bateman, RD LDRegistered Dietitian1013939156
- Iver Gandy, ANPAdult Health Nurse Practitioner1417973736
- Alexandria Garavaglia Wilson, PHARM.D.Pharmacotherapy Pharmacist1316949225
- Janine Kampelman, ANPNurse Practitioner1235461724
- Daniel Ory, MDCardiovascular Disease Physician1164448478
- Jessica Sandfort, RD, LDRegistered Dietitian1750605838
Verify Marc Randall Hammerman 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 R7960Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average nephrology physician in 2024
11 Medicare Part D claims, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Marc Randall Hammerman among 285 nephrology physician records in Missouri
Marc Randall Hammerman, MD is one of 285 nephrology 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 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 48% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileNo · 74% of these records are
- Record last updated2015 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Missouri
There are 285 nephrology physician records in Missouri.
All 285 in Missouri → Every provider in Saint Louis → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Alejandro Alvarez, MDSaint Louis, MO 631101508846304
- Steven Cheng, MDSaint Louis, MO 631101154349611
- Daniel Coyne, MDSaint Louis, MO 631101427074749
- James Delmez, MDSaint Louis, MO 631101306862537
- Decha Enkvetchakul, MDSaint Louis, MO 631101205852514
- Andreas Herrlich, MDSaint Louis, MO 631101770567414
- Benjamin Humphreys, MDSaint Louis, MO 631101497798169
- Tingting Li, MDSaint Louis, MO 631101831154053
Common questions
What is Marc Randall Hammerman, MD's NPI number?
Marc Randall Hammerman, MD's National Provider Identifier (NPI) is 1982622676, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marc Randall Hammerman, MD located?
The NPPES record lists a practice address at 4570 Childrens PL, Saint Louis, MO, 63110. Phone: (314) 362-7601. Providers update this record themselves, so call before visiting.
How can I verify Marc Randall Hammerman, MD's license?
NPPES lists Missouri license number R7960, 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 Marc Randall Hammerman, MD prescribe under Medicare Part D?
In 2024, Marc Randall Hammerman, MD had 11 Medicare Part D claims; the average among nephrology physician prescribers was 1,465. 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.