Erin Pettijohn, M.D.
NPI 1003101429 · Hematology & Oncology Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Erin Pettijohn, M.D. is a Hematology & Oncology Physician provider in Grand Rapids, MI (NPI 1003101429).
Provider details
- NPI number
- 1003101429
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 4301111782 (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
15 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
7,364 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 943 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 942 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 675 | $10 |
| Gammaglobulin (immune System Protein) Measurement82784 | 541 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 428 | $121 |
| Administration of Non-Hormonal Anti-Neoplastic Chemotherapy Under Skin Or Into Muscle96401 | 347 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 47 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Acyclovir | 703 | 145 |
| Lenalidomidebrand: Revlimid | 274 | 33 |
| Hydroxyurea | 239 | 53 |
| Ibrutinibbrand: Imbruvica | 183 | 18 |
| Lenalidomide | 161 | 20 |
| Venetoclaxbrand: Venclexta | 114 | 24 |
| Dexamethasone | 101 | 30 |
| Pomalidomidebrand: Pomalyst |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,275 across 118 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
- 2011-06-14
- Last updated
- 2020-03-13
- Certified
- 2020-03-13
Frequently asked questions
- What is Erin Pettijohn's NPI number?
- Erin Pettijohn's National Provider Identifier (NPI) is 1003101429, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erin Pettijohn's specialty?
- Erin Pettijohn is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Erin Pettijohn located?
- Erin Pettijohn's practice location on file with NPPES is 250 Cherry St Se Ste 2200, Grand Rapids, MI 49503-4608.
- What is Erin Pettijohn's phone number?
- The practice phone number listed in the NPPES registry for Erin Pettijohn is (616) 685-5600.
- Does Erin Pettijohn accept Medicare?
- Erin Pettijohn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Erin Pettijohn's NPI active?
- Yes — Erin Pettijohn's NPI (1003101429) is active in the NPPES registry as of the last update on 2020-03-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.