John Harold Hammett
Certified Registered Nurse Anesthetist · Jackson, MS
John Harold Hammett is a certified registered nurse anesthetist with a practice address in Jackson, Mississippi, and NPI 1982809687, issued on Jun 20, 2007. Check the license (Mississippi R860386, as entered in NPPES) with the Mississippi board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Harold Hammett
- Primary taxonomy
- Certified Registered Nurse Anesthetist 367500000X
- License number
- R860386 MS
Self-reported in NPPES; status is on the state search - Practice location
- 2500 N State St, Jackson, MS 39216
- Phone
- (601) 984-1000
- Enumerated
- Jun 20, 2007
- Record last updated
- Dec 22, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080519000565); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest certified registered nurse anesthetist records → All 840 in Mississippi → Look up another NPI →
Also registered at 2500 N State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Noah Abbas, M.D.Emergency Medicine Physician1982991246
- Syed Abbas, MDAnatomic Pathology & Clinical Pathology Physician1407378961
- Rania AbdoStudent in an Organized Health Care Education/Training Program1255168787
- John AbernathyInternal Medicine Physician1700670650
- Jordan Abney, MDEmergency Medicine Physician1275238214
- Hassan Abou AdmaStudent in an Organized Health Care Education/Training Program1811826688
Verify John Harold Hammett in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Mississippi board licenses this profession
Search for license R860386Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $15.36
1 payment: food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 24,076 providers of this specialty with any payment received $135.08 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Physicians Anesthesia Group, P.A.Jackson, MS
- State OF Mississippi-University OF Mississippi Medical CenterJackson, MS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Harold Hammett among 840 certified registered nurse anesthetist records in Mississippi
John Harold Hammett is one of 840 certified registered nurse anesthetist records with a practice address in Mississippi. 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 38% of them.
- NPI issued2007 · 38% of these records are older, 54% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated2006 · median 2011 among the 669 with a school on file
- Record last updated2010 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
174 certified registered nurse anesthetist records list a practice address in Jackson
They are 174 of the 6,997 NPPES records with a practice address in Jackson, and 840 certified registered nurse anesthetist records in Mississippi.
All 840 in Mississippi → Every provider in Jackson → Certified Registered Nurse Anesthetist nationwide →
The 8 certified registered nurse anesthetist records with the nearest ZIP codes
- Charles Arnold, CRNAJackson, MS 392161881637692
- James Burnham, CRNAJackson, MS 392161881644367
- Penny Chiasson, CRNAJackson, MS 392161780622696
- Robin Ellis, CRNAJackson, MS 392161508896770
- Stephen Hornaday, CRNAJackson, MS 392161821039652
- Mary Johnson, CRNAJackson, MS 392161629050836
- Ransom Jones, CRNAJackson, MS 392161194762740
- Ben Jones, CRNAJackson, MS 392161235173188
Common questions
What is John Harold Hammett's NPI number?
John Harold Hammett's National Provider Identifier (NPI) is 1982809687, issued on Jun 20, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Harold Hammett located?
The NPPES record lists a practice address at 2500 N State St, Jackson, MS, 39216. Phone: (601) 984-1000. Providers update this record themselves, so call before visiting.
How can I verify John Harold Hammett's license?
NPPES lists Mississippi license number R860386, as entered by the provider. Search the Mississippi board that licenses this profession; the NPPES record confirms identity 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.