Marcella Welker, N.P.
NPI 1073512646 · Family Nurse Practitioner · Saginaw, MI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marcella Welker, N.P. is a Family Nurse Practitioner provider in Saginaw, MI (NPI 1073512646).
Provider details
- NPI number
- 1073512646
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- N.P.
- Sex
- Female
- License
- 4704171054 (MI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,063 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 532 | $99 |
| Testing for Presence of Drug, By Chemistry Analyzers80307 | 243 | $60 |
| 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/MsG0481 | 228 | $153 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 48 | $13 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 12 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 1,706 | 237 |
| Morphine Sulfatebrand: Morphine Sulfate Er | 573 | 68 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 534 | 84 |
| Gabapentin | 491 | 103 |
| Fentanyl | 301 | 41 |
| Oxycodone Hcl | 243 | 32 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$27 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-18
- Last updated
- 2007-07-08
Frequently asked questions
- What is Marcella Welker's NPI number?
- Marcella Welker's National Provider Identifier (NPI) is 1073512646, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcella Welker's specialty?
- Marcella Welker is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marcella Welker located?
- Marcella Welker's practice location on file with NPPES is 4450 Fashion Square Blvd, Saginaw, MI 48603-1251.
- What is Marcella Welker's phone number?
- The practice phone number listed in the NPPES registry for Marcella Welker is (989) 792-4090.
- Does Marcella Welker accept Medicare?
- Marcella Welker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marcella Welker's NPI active?
- Yes — Marcella Welker's NPI (1073512646) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.