G Callender, MD
NPI 1932117678 · Hospitalist Physician · Norway, ME
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
G Callender, MD is a Hospitalist Physician provider in Norway, ME (NPI 1932117678).
Provider details
- NPI number
- 1932117678
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 017185 (ME)
Specialties & taxonomies
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
302 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) |
|---|---|---|
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 90 | $112 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 81 | $77 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 47 | $116 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 31 | $48 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 26 | $169 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 27 | — |
| Gabapentin | 25 | — |
| Ropinirole Hcl | 22 | — |
| Lisinopril | 14 | — |
| Doxycycline Hyclate | 13 | 11 |
| Umeclidinium Bromidebrand: Incruse Ellipta | 13 | — |
| Metoprolol Tartrate | 12 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-04
- Last updated
- 2018-02-22
Frequently asked questions
- What is G Callender's NPI number?
- G Callender's National Provider Identifier (NPI) is 1932117678, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is G Callender's specialty?
- G Callender is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is G Callender located?
- G Callender's practice location on file with NPPES is 181 Main St, Norway, ME 04268-5664.
- What is G Callender's phone number?
- The practice phone number listed in the NPPES registry for G Callender is (207) 743-5933.
- Does G Callender accept Medicare?
- G Callender is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is G Callender's NPI active?
- Yes — G Callender's NPI (1932117678) is active in the NPPES registry as of the last update on 2018-02-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.