NPPES file of Aug 9, 2026

Scott Duane Mellum, M.D.

Obstetrics & Gynecology Physician · Chico, CA

Scott Duane Mellum, M.D. is an obstetrics & gynecology physician with a practice address in Chico, California, and NPI 1598751786, issued on Sep 22, 2005. Check the license (California G81272, as entered in NPPES) on the Medical Board of California; 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
1598751786
Name
Scott Duane Mellum
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
G81272 CA
Self-reported in NPPES; status is on the state search
Practice location
101 W 2ND Ave, Chico, CA 95926
Phone
(530) 894-8944
Enumerated
Sep 22, 2005
Record last updated
Apr 30, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(530) 894-8905
Medicare enrollment
Enrolled (PECOS I20080207000694); accepts Medicare assignment
Medical or professional school
University Of Nevada School Of Medicine, 1991
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.
Download card Updates feed

Also registered at 101 W 2ND Ave

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

  1. Jennifer Hopkins, FNPFamily Nurse Practitioner1003231515
  2. Cassie Robinson, NPWomen's Health Nurse Practitioner1912630989

Verify Scott Duane Mellum in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G81272
    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 California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

18% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

135 Medicare Part D claims for 56 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.

  1. Scott Mellum135
  2. Specialty average165

Most prescribed

  1. Misoprostol29 claims
  2. Estradiol19 claims
  3. Progesterone18 claims
  4. Alendronate Sodium14 claims
  5. Estradiol (Once Weekly)14 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 76.7 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 score58.2
  2. Costout of 100 · 30%56.9
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $37.03

1 payment: food and beverage; the largest payer was Minerva Surgical, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Scott Mellum$37.03
  2. Specialty average$1,030.61

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

Bills Medicare through one group practice

  1. Enloe Medical CenterChico, CA

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

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

Other obstetrics & gynecology physician records in California

  1. Ingrid Aalami, MDSan Jose, CA1952376550
  2. Avisa Abaian- Eagar, M.D.Orange, CA1316057755
  3. Derek Abbassi, MDWalnut Creek, CA1841364155
  4. Ahmed Abdelaziz, MDSanta Maria, CA1790039733
  5. Alireza Abdollah Shamshirsaz, M.D.Palo Alto, CA1881804235
  6. Nicole Abell, DOVentura, CA1811243603
  7. Zachary AbelsonLos Angeles, CA1689237414
  8. Ray Abinader, M.D.Loma Linda, CA1770901548
  9. Tarek Abou El Kheir, M.D.San Bernardino, CA1477521789
  10. Nada Abou-HaibaLos Angeles, CA1134067549

Common questions

What is Scott Duane Mellum, M.D.'s NPI number?

Scott Duane Mellum, M.D.'s National Provider Identifier (NPI) is 1598751786, issued on Sep 22, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Scott Duane Mellum, M.D. located?

The NPPES record lists a practice address at 101 W 2ND Ave, Chico, CA, 95926. Phone: (530) 894-8944. Providers update this record themselves, so call before visiting.

How can I verify Scott Duane Mellum, M.D.'s license?

NPPES lists California license number G81272, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Scott Duane Mellum, M.D. prescribe under Medicare Part D?

In 2024, Scott Duane Mellum, M.D. had 135 Medicare Part D claims for 56 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

What is Scott Duane Mellum, M.D.'s MIPS final score?

The 2023 MIPS final score is 76.7 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.