Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

MARCELLA SUE WELKER N.P.
NPI 1073512646
Nurse Practitioner - Family in Saginaw, MI

Active since July 18, 2005PECOS Enrolled
4450 FASHION SQUARE BLVD, SAGINAW, MI 48603(989) 792-4090(989) 792-4094 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Marcella Sue Welker N.p. NPPES

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

MARCELLA SUE WELKER N.P. (NPI 1073512646) is an individual family provider in Saginaw, Michigan, licensed in Michigan (4704171054) and active in the NPI registry since July 2005. She is enrolled in Medicare PECOS and is a graduate of Other (1999).

NPPES Registry Identity

NPI1073512646
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMARCELLA SUE WELKERCredential: N.P.
Location Address4450 FASHION SQUARE BLVDSaginaw, MI 48603-1251
Mailing Address4450 Fashion Square BlvdSaginaw, MI 48603-1251 · (989) 792-4090 · Fax (989) 792-4094
Fax(989) 792-4094
Sole ProprietorNo
Medical School CMSOtherGraduated 1999
Enumeration DateJuly 18, 2005
Last NPPES UpdateJuly 13, 2026
NPI 1073512646 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License Licensed in MI · 4704171054
4450 FASHION SQUARE BLVD, Saginaw, MI 48603

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Marcella Sue Welker N.p. 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 ID8921295502
PECOS Enrollment IDI20101208000657
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.

Areas of Expertise CMS Part B claims 4

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 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.
532 services158 patients
Testing for presence of drug, by chemistry analyzers 80307
Chemistry analyzers are used to detect the presence of drugs in your system. This test involves taking a small sample of your blood or urine. The sample is then analyzed for specific substances. The results help in understanding your health condition better.
243 services120 patients
Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms G0481
A definitive drug test is a detailed analysis used to identify specific drugs in your system. It uses advanced techniques, such as gc/ms and lc/ms, to detect and distinguish between different drugs, even those with similar structures.
228 services113 patients
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.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48603 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
$84.74 typical visit price
range $54.34 – $166.68
Typical copayment $21.18 (range $13.58 – $41.67)
Most-billed visit code 99203
Established Patient
$96.44 typical visit price
range $17.09 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 17

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

Pain Medicine (Interventional Pain Medicine)
4450 FASHION SQUARE BLVD
SAGINAW, MI 48603
Nurse Practitioner (Family)
4450 FASHION SQUARE BLVD
SAGINAW, MI 48603
Anesthesiology (Pain Medicine)
4450 FASHION SQUARE BLVD
SAGINAW, MI 48603
Nurse Practitioner
4450 FASHION SQUARE BLVD, SUITE 100
SAGINAW, MI 48603
Nurse Practitioner (Family)
4450 FASHION SQUARE BLVD
SAGINAW, MI 48603
Clinic/Center (Ambulatory Surgical)
4450 FASHION SQUARE BLVD, STE 200
SAGINAW, MI 48603
Orthopaedic Surgery
4450 FASHION SQUARE BLVD
SAGINAW, MI 48603
Nurse Practitioner
4450 FASHION SQUARE BLVD
SAGINAW, MI 48603

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 Marcella Welker's NPI number?

The NPI number for Marcella Welker is 1073512646. It was assigned to this individual provider in the NPPES registry on July 18, 2005.

Where is Marcella Welker located?

Marcella Welker practices at 4450 Fashion Square Blvd, Saginaw, MI 48603. The listed phone number is (989) 792-4090.

What is Marcella Welker's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Marcella Welker enrolled in Medicare?

Yes. Marcella Welker 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.

What insurance does Marcella Welker accept?

Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, McLaren Health Plan Community and Priority Health list Marcella Welker as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Marcella Welker was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.