Caroline Heideman, DO
NPI 1891229100 · Internal Medicine Physician · Lansing, MI
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Caroline Heideman, DO is a Internal Medicine Physician provider in Lansing, MI (NPI 1891229100).
Provider details
- NPI number
- 1891229100
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 5101023401 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 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
338 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 | 215 | $89 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 72 | $60 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 15 | $165 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 12 | $75 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 12 | $122 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 117 | 40 |
| Letrozole | 72 | 17 |
| Ondansetron Hcl | 59 | 41 |
| Apixabanbrand: Eliquis | 54 | — |
| Prochlorperazine Maleate | 47 | 35 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 46 | 18 |
| Imatinib Mesylate | 31 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,302 across 64 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
- 2017-04-13
- Last updated
- 2018-02-28
Frequently asked questions
- What is Caroline Heideman's NPI number?
- Caroline Heideman's National Provider Identifier (NPI) is 1891229100, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Caroline Heideman's specialty?
- Caroline Heideman is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Caroline Heideman located?
- Caroline Heideman's practice location on file with NPPES is 401 W Greenlawn Ave, Lansing, MI 48910-2819.
- What is Caroline Heideman's phone number?
- The practice phone number listed in the NPPES registry for Caroline Heideman is (517) 975-6000.
- Does Caroline Heideman accept Medicare?
- Caroline Heideman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Caroline Heideman's NPI active?
- Yes — Caroline Heideman's NPI (1891229100) is active in the NPPES registry as of the last update on 2018-02-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.