Richard H. Nierenberg, MD
Hospitalist Physician · Phoenix, AZ
Richard H. Nierenberg, MD is a hospitalist physician with a practice address in Phoenix, Arizona, and NPI 1598870628, issued on Aug 20, 2006. Check the license (Arizona 44026, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Richard H. Nierenberg
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 44026 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1800 E Van Buren St, Phoenix, AZ 85006
- Phone
- (602) 251-8316
- Enumerated
- Aug 20, 2006
- Record last updated
- Jan 22, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicaid IDs
- 1419486 LA
279981200 FL
09553865 MS - Medicare enrollment
- Enrolled (PECOS I20111005000015); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 775 in Arizona → Look up another NPI →
Also registered at 1800 E Van Buren St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Nina Gomez, NPPsychiatric/Mental Health Nurse Practitioner1376977934
- Makonnen Habtemariam, M.D.Internal Medicine Physician1851357909
- Sharon Johnstone, MDNeurology Physician1407954167
Verify Richard H. Nierenberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 44026Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% fewer Medicare Part D claims than the average hospitalist physician in 2024
476 Medicare Part D claims for 176 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Eliquis39 claims
- Prednisone34 claims
- Cefuroxime30 claims
- Atorvastatin Calcium24 claims
- Clopidogrel24 claims
- Furosemide22 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 one group practice
- Hospitalist Medicine Healthcare LLCShow Low, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Richard H. Nierenberg among 775 hospitalist physician records in Arizona
Richard H. Nierenberg, MD is one of 775 hospitalist physician records with a practice address in Arizona. 88% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 79% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated1988 · median 2011 among the 618 with a school on file
- Record last updated2019 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Arizona
There are 775 hospitalist physician records in Arizona.
All 775 in Arizona → Every provider in Phoenix → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Roger Dikdan, MDPhoenix, AZ 850061407140957
- Yolanda Jones, M.D.Phoenix, AZ 850061154595254
- Mohammad Khan, MDPhoenix, AZ 850061700866928
- Kristin Lane, DOPhoenix, AZ 850061891922829
- Gerard Leahy, MDPhoenix, AZ 850061124255294
- Cristiane Lin, MD, PHDPhoenix, AZ 850061831356799
- Ranga Macherla, MDPhoenix, AZ 850061790802056
- Nazar Noori, M.D.Phoenix, AZ 850061922028513
Common questions
What is Richard H. Nierenberg, MD's NPI number?
Richard H. Nierenberg, MD's National Provider Identifier (NPI) is 1598870628, issued on Aug 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Richard H. Nierenberg, MD located?
The NPPES record lists a practice address at 1800 E Van Buren St, Phoenix, AZ, 85006. Phone: (602) 251-8316. Providers update this record themselves, so call before visiting.
How can I verify Richard H. Nierenberg, MD's license?
NPPES lists Arizona license number 44026, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Richard H. Nierenberg, MD prescribe under Medicare Part D?
In 2024, Richard H. Nierenberg, MD had 476 Medicare Part D claims for 176 beneficiaries; the average among hospitalist physician prescribers was 521. 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.