William G. Haynes, MD
Internal Medicine Physician · Iowa City, IA
William G. Haynes, MD is an internal medicine physician with a practice address in Iowa City, Iowa, and NPI 1083602601, issued on Oct 7, 2005. Check the license (Iowa SP 87, as entered in NPPES) on the Iowa Board of Medicine; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William G. Haynes
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- SP 87 IA
Self-reported in NPPES; status is on the state search - Practice location
- 200 Hawkins Dr, Iowa City, IA 52242
- Phone
- (319) 356-8469
- Enumerated
- Oct 7, 2005
- Record last updated
- Dec 4, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (319) 353-7340
- Medicaid ID
- 0127423 IA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 871 in Iowa → Look up another NPI →
Also registered at 200 Hawkins Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William G. Haynes in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license SP 87Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William G. Haynes among 871 internal medicine physician records in Iowa
William G. Haynes, MD is one of 871 internal medicine physician records with a practice address in Iowa. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 89% newer
- In a Medicare fileNo · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 44% of these records are
- Record last updated2007 · 46% 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 Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
215 internal medicine physician records list a practice address in Iowa City
They are 215 of the 7,163 NPPES records with a practice address in Iowa City, and 871 internal medicine physician records in Iowa. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 871 in Iowa → Every provider in Iowa City → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Thad Abrams, MDIowa City, IA 522421326022385
- Susan Beebout, MDIowa City, IA 522421790767127
- Christopher Goerdt, MDIowa City, IA 522421548258163
- William Iverson, MDIowa City, IA 522421346238904
- Peter Kaboli, MDIowa City, IA 522421518949940
- David Katz, MDIowa City, IA 522421023090321
- Ann Machlab, MDIowa City, IA 522421780668004
- Barbara Muller, MDIowa City, IA 522421588652101
Common questions
What is William G. Haynes, MD's NPI number?
William G. Haynes, MD's National Provider Identifier (NPI) is 1083602601, issued on Oct 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William G. Haynes, MD located?
The NPPES record lists a practice address at 200 Hawkins Dr, Iowa City, IA, 52242. Phone: (319) 356-8469. Providers update this record themselves, so call before visiting.
How can I verify William G. Haynes, MD's license?
NPPES lists Iowa license number SP 87, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. 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. 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.