Kristen Ludema, D.O.
NPI 1528403540 · Anesthesiology Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kristen Ludema, D.O. is a Anesthesiology Physician provider in Grand Rapids, MI (NPI 1528403540).
Provider details
- NPI number
- 1528403540
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
26 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Injection of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve)64447 | 15 | $51 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 11 | $137 |
Typical Medicare-allowed amounts for these services range $51–$137 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-05-03
- Last updated
- 2021-05-20
- Certified
- 2021-05-20
Frequently asked questions
- What is Kristen Ludema's NPI number?
- Kristen Ludema's National Provider Identifier (NPI) is 1528403540, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kristen Ludema's specialty?
- Kristen Ludema is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Kristen Ludema located?
- Kristen Ludema's practice location on file with NPPES is 100 Michigan St Ne, Grand Rapids, MI 49503-2560.
- What is Kristen Ludema's phone number?
- The practice phone number listed in the NPPES registry for Kristen Ludema is (616) 364-4200.
- Does Kristen Ludema accept Medicare?
- Kristen Ludema is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kristen Ludema's NPI active?
- Yes — Kristen Ludema's NPI (1528403540) is active in the NPPES registry as of the last update on 2021-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.