Erik Christensen, MD
NPI 1558851873 · Emergency Medicine Physician · Portland, ME
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Erik Christensen, MD is a Emergency Medicine Physician provider in Portland, ME (NPI 1558851873).
Provider details
- NPI number
- 1558851873
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 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
546 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 203 | $165 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 130 | $8 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 116 | $114 |
| Critical Care, First 30-74 Minutes99291 | 67 | $202 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 16 | $67 |
| Ultrasound Scan of Chest76604 | 14 | $26 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Doxycycline Monohydrate | 32 | 32 |
| Cefdinir | 31 | 31 |
| Prednisone | 20 | 19 |
| Ondansetronbrand: Ondansetron Odt | 18 | 18 |
| Azithromycin | 14 | 14 |
| Cefpodoxime Proxetil | 13 | 13 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-05-11
- Last updated
- 2022-06-17
- Certified
- 2022-06-17
Frequently asked questions
- What is Erik Christensen's NPI number?
- Erik Christensen's National Provider Identifier (NPI) is 1558851873, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erik Christensen's specialty?
- Erik Christensen is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Erik Christensen located?
- Erik Christensen's practice location on file with NPPES is 22 Bramhall St, Portland, ME 04102-3134.
- What is Erik Christensen's phone number?
- The practice phone number listed in the NPPES registry for Erik Christensen is (207) 662-0111.
- Does Erik Christensen accept Medicare?
- Erik Christensen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Erik Christensen's NPI active?
- Yes — Erik Christensen's NPI (1558851873) is active in the NPPES registry as of the last update on 2022-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.