Rex Appenfeller, M.D.
NPI 1710983523 · Internal Medicine Physician · Lincoln, RI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rex Appenfeller, M.D. is a Internal Medicine Physician provider in Lincoln, RI (NPI 1710983523).
Provider details
- NPI number
- 1710983523
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD05740 (RI)
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
20 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
1,478 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 | 348 | $71 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 232 | $16 |
| Annual, Face-To-Face Intensive Behavioral Therapy for Cardiovascular Disease, Individual, 15 MinutesG0446 | 167 | $25 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 166 | $19 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 159 | $19 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent Visit |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 114 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 625 | 169 |
| Omeprazole | 372 | 86 |
| Lisinopril | 323 | 83 |
| Amlodipine Besylate | 298 | 76 |
| Losartan Potassium | 278 | 72 |
| Metformin Hcl | 237 | 56 |
| Simvastatin | 207 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$21 across 1 record (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
- 2005-06-27
- Last updated
- 2020-10-19
- Certified
- 2020-10-19
Frequently asked questions
- What is Rex Appenfeller's NPI number?
- Rex Appenfeller's National Provider Identifier (NPI) is 1710983523, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rex Appenfeller's specialty?
- Rex Appenfeller is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Rex Appenfeller located?
- Rex Appenfeller's practice location on file with NPPES is 1 Commerce St Ste 200, Lincoln, RI 02865-1186.
- What is Rex Appenfeller's phone number?
- The practice phone number listed in the NPPES registry for Rex Appenfeller is (401) 793-8500.
- Does Rex Appenfeller accept Medicare?
- Rex Appenfeller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rex Appenfeller's NPI active?
- Yes — Rex Appenfeller's NPI (1710983523) is active in the NPPES registry as of the last update on 2020-10-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.