NPPES file of Aug 9, 2026

Marissa Humphrey, M.D.

Anesthesiology Physician · Jackson, MS

Marissa Humphrey, M.D. is an anesthesiology physician with a practice address in Jackson, Mississippi, and NPI 1598992794, issued on Jun 15, 2009. Check the license (Mississippi 23357, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1598992794
Name
Marissa Humphrey
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License numbers
23357 MS
MD214825 OR
253540 NY
Self-reported in NPPES; status is on the state search
Practice location
2500 N State St, Jackson, MS 39216
Phone
(601) 984-5931
Enumerated
Jun 15, 2009
Record last updated
Sep 6, 2024
Medicaid ID
06457521 MS
Medicare enrollment
Enrolled (PECOS I20231010000534); accepts Medicare assignment
Medical or professional school
New York Medical College, 2008
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2500 N State St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Noah Abbas, M.D.Emergency Medicine Physician1982991246
  2. Syed Abbas, MDAnatomic Pathology & Clinical Pathology Physician1407378961
  3. Rania AbdoStudent in an Organized Health Care Education/Training Program1255168787
  4. John AbernathyInternal Medicine Physician1700670650
  5. Jordan Abney, MDEmergency Medicine Physician1275238214
  6. Hassan Abou AdmaStudent in an Organized Health Care Education/Training Program1811826688

Verify Marissa Humphrey in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
    Search for license 23357
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Mississippi license search

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96% fewer Medicare Part D claims than the average anesthesiology physician in 2024

18 Medicare Part D claims, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D.

  1. Marissa Humphrey18
  2. Specialty average402

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.

The practice group's MIPS final score for 2023 (Medicare payment program): 46.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score54.5
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $36.54

1 payment: food and beverage; the largest payer was Pacira Pharmaceuticals Incorporated. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Marissa Humphrey$36.54
  2. Specialty average$669.59

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 3 group practices

  1. Anesthesia Associates OF Morristown PAMorristown, NJ
  2. Anesthesia Partners OF ColoradoVail, CO
  3. Glenwood Anesthesia Professionals, PCGlenwood Spgs, CO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

153 anesthesiology physician records list a practice address in Jackson

They are 153 of the 6,997 NPPES records with a practice address in Jackson, and 320 anesthesiology physician records in Mississippi.

Other anesthesiology physician records in Mississippi

  1. John Adams, M.D.Jackson, MS1669561692
  2. Sarah AdamsJackson, MS1659733632
  3. Mohammad Hazem Ahmad Sabry, MDMcComb, MS1568781144
  4. Oscar Alam Mendez, MDJackson, MS1356761597
  5. Edward AlpaughGulfport, MS1215565148
  6. Patricia Amolenda, M.D.Jackson, MS1073928941
  7. Trevan Anderson, DOJackson, MS1528703105
  8. Giomary Anuel Martinez, MDJackson, MS1023738051
  9. Anthony Armstrong, M.D.Corinth, MS1932180635
  10. Lance Atchley, M.D.Starkville, MS1013204791

Common questions

What is Marissa Humphrey, M.D.'s NPI number?

Marissa Humphrey, M.D.'s National Provider Identifier (NPI) is 1598992794, issued on Jun 15, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Marissa Humphrey, M.D. located?

The NPPES record lists a practice address at 2500 N State St, Jackson, MS, 39216. Phone: (601) 984-5931. Providers update this record themselves, so call before visiting.

How can I verify Marissa Humphrey, M.D.'s license?

NPPES lists Mississippi license number 23357, as entered by the provider. Search the Mississippi State Board of Medical Licensure at https://www.msbml.ms.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Marissa Humphrey, M.D. prescribe under Medicare Part D?

In 2024, Marissa Humphrey, M.D. had 18 Medicare Part D claims; the average among anesthesiology physician prescribers was 402. Part D covers Medicare prescriptions only.

What is Marissa Humphrey, M.D.'s MIPS final score?

The 2023 MIPS final score is 46.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.