Timothy Glerum, NP
NPI 1255708921 · Nurse Practitioner · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Glerum, NP is a Nurse Practitioner provider in Grand Rapids, MI (NPI 1255708921).
Provider details
- NPI number
- 1255708921
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Male
- Sole proprietor
- No
- License
- 4704278870 (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
10 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
235 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) |
|---|---|---|
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 74 | $112 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 49 | $94 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 49 | $43 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 38 | $68 |
| Measurement of Liver Stiffness91200 | 13 | $9 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 85 | 32 |
| Rifaximinbrand: Xifaxan | 66 | 20 |
| Ursodiol | 65 | 14 |
| Pantoprazole Sodium | 61 | 20 |
| Linaclotidebrand: Linzess | 57 | 21 |
| Lipase/Protease/Amylasebrand: Creon | 47 | 12 |
| Dicyclomine Hcl | 43 | 19 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$465 across 13 records (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
- 2015-08-28
- Last updated
- 2021-03-04
- Certified
- 2021-03-04
Frequently asked questions
- What is Timothy Glerum's NPI number?
- Timothy Glerum's National Provider Identifier (NPI) is 1255708921, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Glerum's specialty?
- Timothy Glerum is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Timothy Glerum located?
- Timothy Glerum's practice location on file with NPPES is 4100 Lake Dr Se, Grand Rapids, MI 49546-8292.
- What is Timothy Glerum's phone number?
- The practice phone number listed in the NPPES registry for Timothy Glerum is (616) 267-7414.
- Does Timothy Glerum accept Medicare?
- Timothy Glerum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Glerum's NPI active?
- Yes — Timothy Glerum's NPI (1255708921) is active in the NPPES registry as of the last update on 2021-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.