Penny J. Williams, MD
Critical Care Medicine (Internal Medicine) Physician · Phoenix, AZ
Penny J. Williams, MD is a critical care medicine (internal medicine) physician with a practice address in Phoenix, Arizona, and NPI 1588649453, issued on Dec 13, 2005. Check the license (Arizona 26291, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Penny J. Williams
- Credential
- MD
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License numbers
- 26291 AZ
66867 TN
MD202003 OR
18810 SC
910 WI
Self-reported in NPPES; status is on the state search - Practice location
- 3330 N 2ND St Ste 300, Phoenix, AZ 85012
- Phone
- (602) 261-7830
- Enumerated
- Dec 13, 2005
- Record last updated
- Jan 28, 2025
- Fax
- (602) 261-7835
- Medicaid ID
- 420935 AZ
- Medicare enrollment
- Enrolled (PECOS I20040423000013); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 1990
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 180 in Arizona → Look up another NPI →
Also registered at 3330 N 2ND St Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dany Bahdouch, MDCritical Care Medicine (Internal Medicine) Physician1578536512
- Amira Said, CNPAcute Care Nurse Practitioner1750998373
- Aaron Thornburg, DOCritical Care Medicine (Internal Medicine) Physician1669425245
Verify Penny J. Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 26291Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3 hospitals and group practices
- Yuma Regional Medical CenterYuma, AZ · Acute Care Hospitals2 of 5 stars
- Blue Ridge Medical Management CorporationJohnson City, TN
- Warren Clinic IncTulsa, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Penny J. Williams among 180 critical care medicine (internal medicine) physician records in Arizona
Penny J. Williams, MD is one of 180 critical care medicine (internal medicine) physician records with a practice address in Arizona. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 86% of these records are
- Graduated1990 · median 2007 among the 155 with a school on file
- Record last updated2025 · 29% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Arizona
There are 180 critical care medicine (internal medicine) physician records in Arizona.
All 180 in Arizona → Every provider in Phoenix → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Dany Bahdouch, MDPhoenix, AZ 850121578536512
- Syed Shahryar, M.D.Phoenix, AZ 850121982613097
- Ramakant Sharma, MDPhoenix, AZ 850121013137918
- Aaron Thornburg, DOPhoenix, AZ 850121669425245
- Heather Boakye-Wenzel, MDPhoenix, AZ 850131023407483
- Abdalla Fadda, MDPhoenix, AZ 850131467682021
- Matthew Fain, DOPhoenix, AZ 850131720390107
- Josna Padiyar, DOPhoenix, AZ 850131558781831
Common questions
What is Penny J. Williams, MD's NPI number?
Penny J. Williams, MD's National Provider Identifier (NPI) is 1588649453, issued on Dec 13, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Penny J. Williams, MD located?
The NPPES record lists a practice address at 3330 N 2ND St Ste 300, Phoenix, AZ, 85012. Phone: (602) 261-7830. Providers update this record themselves, so call before visiting.
How can I verify Penny J. Williams, MD's license?
NPPES lists Arizona license number 26291, 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.
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.