Susan Mastenbrook, NP
NPI 1205194248 · Family Nurse Practitioner · Kalamazoo, MI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Susan Mastenbrook, NP is a Family Nurse Practitioner provider in Kalamazoo, MI (NPI 1205194248).
Provider details
- NPI number
- 1205194248
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 4704207644 (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 tenure33% of score
14 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$18 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
Additional practice locations (1)
- 117 W Paterson StKalamazoo, MI 49007-2581Phone: (269) 349-2641
Registry dates
- Enumerated
- 2012-04-27
- Last updated
- 2022-12-27
- Certified
- 2022-12-27
Frequently asked questions
- What is Susan Mastenbrook's NPI number?
- Susan Mastenbrook's National Provider Identifier (NPI) is 1205194248, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Susan Mastenbrook's specialty?
- Susan Mastenbrook is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Susan Mastenbrook located?
- Susan Mastenbrook's practice location on file with NPPES is 1521 Gull Rd, Kalamazoo, MI 49048-1640.
- What is Susan Mastenbrook's phone number?
- The practice phone number listed in the NPPES registry for Susan Mastenbrook is (269) 226-7000.
- Does Susan Mastenbrook accept Medicare?
- Susan Mastenbrook is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Susan Mastenbrook's NPI active?
- Yes — Susan Mastenbrook's NPI (1205194248) is active in the NPPES registry as of the last update on 2022-12-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.