Katie Ann Mattila, NP
Nurse Practitioner · Grand Rapids, MI
Katie Ann Mattila, NP is a nurse practitioner with a practice address in Grand Rapids, Michigan, and NPI 1124891858, issued on Nov 3, 2023. Check the license with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katie Ann Mattila
- Credential
- NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- 11177 MN
204623 ND
Self-reported in NPPES; status is on the state search - Practice location
- 790 Fuller Ave NE, Grand Rapids, MI 49503
- Phone
- (616) 336-3909
- Enumerated
- Nov 3, 2023
- Record last updated
- May 29, 2026
- Fax
- (616) 336-8830
- Medicare enrollment
- Enrolled (PECOS I20250716000549); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 3,574 in Michigan → Look up another NPI →
Also registered at 790 Fuller Ave NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Aubrie AllenCase Manager/Care Coordinator1407553928
- Araceli Alvarez, LLMSWSocial Worker1932816139
- Andrew AmidonCase Manager/Care Coordinator1437804564
- Trechaun AndersonSocial Worker1649914367
- Stacey AndrewsCase Manager/Care Coordinator1497583546
Verify Katie Ann Mattila in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average nurse practitioner in 2024
20 Medicare Part D claims, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
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.
Katie Ann Mattila among 3,574 nurse practitioner records in Michigan
Katie Ann Mattila, NP is one of 3,574 nurse practitioner records with a practice address in Michigan. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 87% of them.
- NPI issued2023 · 87% of these records are older, 9% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2023 · median 2017 among the 1,983 with a school on file
- Record last updated2026 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
275 nurse practitioner records list a practice address in Grand Rapids
They are 275 of the 18,005 NPPES records with a practice address in Grand Rapids, and 3,574 nurse practitioner records in Michigan.
All 3,574 in Michigan → Every provider in Grand Rapids → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Gazelle Animalia, FNPGrand Rapids, MI 495031235145087
- Glenes Hamersma, GNP-CGrand Rapids, MI 495031841242898
- Teri Holwerda, NPGrand Rapids, MI 495031548289325
- Jean Koops, NPGrand Rapids, MI 495031710907472
- Karen Lindhout, NPGrand Rapids, MI 495031740200401
- Karen Meyer-Howe, CNPGrand Rapids, MI 495031609896836
- Kristine Niemeyer, MSN, NPGrand Rapids, MI 495031083728372
- Elizabeth Pierson, NPGrand Rapids, MI 495031972550952
Common questions
What is Katie Ann Mattila, NP's NPI number?
Katie Ann Mattila, NP's National Provider Identifier (NPI) is 1124891858, issued on Nov 3, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Katie Ann Mattila, NP located?
The NPPES record lists a practice address at 790 Fuller Ave NE, Grand Rapids, MI, 49503. Phone: (616) 336-3909. Providers update this record themselves, so call before visiting.
How can I verify Katie Ann Mattila, NP's license?
Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Katie Ann Mattila, NP prescribe under Medicare Part D?
In 2024, Katie Ann Mattila, NP had 20 Medicare Part D claims; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
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.