Katherine Caldwell, MD
NPI 1730257411 · Internal Medicine Physician · Portland, ME
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Caldwell, MD is a Internal Medicine Physician provider in Portland, ME (NPI 1730257411).
Provider details
- NPI number
- 1730257411
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD17709 (ME)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
562 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 153 | $72 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 108 | $82 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 85 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 45 | $8 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Total)80048 | 37 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 25 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 35 | 33 |
| Gabapentin | 31 | 19 |
| Levothyroxine Sodium | 26 | 14 |
| Atorvastatin Calcium | 25 | 12 |
| Rosuvastatin Calcium | 25 | — |
| Lorazepam | 25 | 16 |
| Apixaban |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-01
- Last updated
- 2026-03-04
- Certified
- 2026-03-04
Frequently asked questions
- What is Katherine Caldwell's NPI number?
- Katherine Caldwell's National Provider Identifier (NPI) is 1730257411, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Caldwell's specialty?
- Katherine Caldwell is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Caldwell located?
- Katherine Caldwell's practice location on file with NPPES is 84 Marginal Way, Portland, ME 04101-2443.
- What is Katherine Caldwell's phone number?
- The practice phone number listed in the NPPES registry for Katherine Caldwell is (207) 774-5816.
- Does Katherine Caldwell accept Medicare?
- Katherine Caldwell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Caldwell's NPI active?
- Yes — Katherine Caldwell's NPI (1730257411) is active in the NPPES registry as of the last update on 2026-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.