Robert Clifton Knizley, MD
Internal Medicine Physician · Mobile, AL
Robert Clifton Knizley, MD is an internal medicine physician with a practice address in Mobile, Alabama, and NPI 1952501983, issued on Jul 18, 2007. Check the license (Alabama 29469, as entered in NPPES) on the Alabama Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Robert Clifton Knizley
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 29469 AL
602 WI
Self-reported in NPPES; status is on the state search - Practice location
- 5 Mobile Infirmary Cir, Mobile, AL 36607
- Phone
- (251) 545-4579
- Enumerated
- Jul 18, 2007
- Record last updated
- Jun 1, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (251) 287-1466
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,705 in Alabama → Look up another NPI →
Also registered at 5 Mobile Infirmary Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Robert Clifton Knizley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersAlabama Board of Medical Examiners
Search for license 29469Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
124 Medicare Part D claims for 70 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone12 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.
Robert Clifton Knizley among 1,705 internal medicine physician records in Alabama
Robert Clifton Knizley, MD is one of 1,705 internal medicine physician records with a practice address in Alabama. 84% 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 51% of them.
- NPI issued2007 · 51% of these records are older, 42% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 67% of these records are
- Record last updated2020 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Alabama practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
255 internal medicine physician records list a practice address in Mobile
They are 255 of the 6,309 NPPES records with a practice address in Mobile, and 1,705 internal medicine physician records in Alabama.
All 1,705 in Alabama → Every provider in Mobile → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- William Admire, DOMobile, AL 366071295764124
- Ahdy Bolis, MDMobile, AL 366071821033671
- James Byrd, MDMobile, AL 366071194815092
- Alfred Chance, MDMobile, AL 366071124035795
- Asad Cheema, M.DMobile, AL 366071861808537
- Frankie Erdman, MDMobile, AL 366071255360061
- Frances Inge, M.D.Mobile, AL 366071932145703
- Hugh Milteer, MDMobile, AL 366071063771210
Common questions
What is Robert Clifton Knizley, MD's NPI number?
Robert Clifton Knizley, MD's National Provider Identifier (NPI) is 1952501983, issued on Jul 18, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Robert Clifton Knizley, MD located?
The NPPES record lists a practice address at 5 Mobile Infirmary Cir, Mobile, AL, 36607. Phone: (251) 545-4579. Providers update this record themselves, so call before visiting.
How can I verify Robert Clifton Knizley, MD's license?
NPPES lists Alabama license number 29469, as entered by the provider. Search the Alabama Board of Medical Examiners at https://www.albme.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert Clifton Knizley, MD prescribe under Medicare Part D?
In 2024, Robert Clifton Knizley, MD had 124 Medicare Part D claims for 70 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.