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DR. SCOTT DUANE MELLUM M.D.
NPI 1598751786
Obstetrics & Gynecology in Chico, CA

Active since September 22, 2005PECOS EnrolledAccepts Medicare Assignment
76.66/100
CMS Quality Rating
101 W 2ND AVE, CHICO, CA 95926(530) 894-8944(530) 894-8905 Get Directions Write a Review

NPPES record last updated: April 30, 2010. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Dr. Scott Duane Mellum M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. SCOTT DUANE MELLUM M.D. (NPI 1598751786) is an individual obstetrics & gynecology provider in Chico, California, licensed in California (G81272) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS and is a graduate of University Of Nevada School Of Medicine (1991).

NPPES Registry Identity

NPI1598751786
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameDR. SCOTT DUANE MELLUMCredential: M.D.
Location Address101 W 2ND AVEChico, CA 95926-3810
Mailing Address101 W 2nd AveChico, CA 95926-3810 · (530) 894-8944 · Fax (530) 894-8905
Phone(530) 894-8944
Fax(530) 894-8905
Sole ProprietorYes
Medical School CMSUniversity Of Nevada School Of MedicineGraduated 1991
Enumeration DateSeptember 22, 2005
Last NPPES UpdateApril 30, 2010
✔ NPI 1598751786 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in CA · G81272
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
101 W 2ND AVE, Chico, CA 95926
Open in Google Maps ↗

Other Identifiers 1

Medicare UPING05288CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Scott Duane Mellum M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3274616677
PECOS Enrollment IDI20080207000694
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Scott Mellum reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Enloe Medical Center
0.4 mi
Obstetrics & Gynecology
1665 ESPLANADE
Chico, CA 95926
  • Reassigned Medicare billing, California enrollment
  • 48 clinicians in this Medicare group
NPI 1023420726 (530) 895-0423

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
89 services68 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
33 services28 patients
Cervical or vaginal cancer screening; pelvic and clinical breast examination G0101
This procedure involves checking for health issues in the lower abdomen and chest area. It helps identify early signs of certain conditions, increasing the chance for successful treatment. It's a routine check-up that's important for maintaining good health.
30 services30 patients
Biopsy of lining of uterus 58100
A biopsy of the uterus lining is a medical procedure where a small sample of tissue is taken from the inner layer of your uterus. This is done to check for any abnormal cells or conditions. It's a common, quick process that helps in diagnosing various health issues.
16 services16 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95926 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$133.94 typical visit price
range $58.87 – $176.60
Typical copayment $33.48 (range $14.71 – $44.15)
Most-billed visit code 99204
Established Patient
$73.16 typical visit price
range $19.28 – $144.60
Typical copayment $18.29 (range $4.82 – $36.15)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

76.66/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality58.21
Promoting Interoperability100
Improvement Activities40
Cost56.9

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JENNIFER LYNN HOPKINS FNP
Nurse Practitioner (Family)
101 W 2ND AVE
CHICO, CA 95926
Butte County (530) 894-8944
CASSIE JEAN ROBINSON NP
Nurse Practitioner (Women's Health)
101 W 2ND AVE
CHICO, CA 95926
Butte County (530) 894-8944

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Scott Mellum's NPI number?

The NPI number for Scott Mellum is 1598751786. It was assigned to this individual provider in the NPPES registry on September 22, 2005.

Where is Scott Mellum located?

Scott Mellum practices at 101 W 2nd Ave, Chico, CA 95926. The listed phone number is (530) 894-8944.

What is Scott Mellum's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Scott Mellum enrolled in Medicare?

Yes. Scott Mellum is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Scott Mellum's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Scott Mellum reassigns Medicare benefits to Enloe Medical Center (Chico, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Scott Mellum's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Scott Mellum was last updated on April 30, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.