David Preston, M.D.
NPI 1871559203 · Internal Medicine Physician · Winslow, ME
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Preston, M.D. is a Internal Medicine Physician provider in Winslow, ME (NPI 1871559203).
Provider details
- NPI number
- 1871559203
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 012727 (ME)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
583 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 236 | $90 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 138 | $61 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 96 | $119 |
| 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 | 47 | $15 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 27 | $50 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 107 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 305 | 115 |
| Levothyroxine Sodium | 260 | 96 |
| Losartan Potassium | 254 | 90 |
| Atorvastatin Calcium | 249 | 90 |
| Rosuvastatin Calcium | 238 | 85 |
| Lisinopril | 201 | 82 |
| Amlodipine Besylate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-25
- Last updated
- 2008-05-05
Frequently asked questions
- What is David Preston's NPI number?
- David Preston's National Provider Identifier (NPI) is 1871559203, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Preston's specialty?
- David Preston is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is David Preston located?
- David Preston's practice location on file with NPPES is 80 Garland Rd, Winslow, ME 04901-0600.
- What is David Preston's phone number?
- The practice phone number listed in the NPPES registry for David Preston is (207) 873-1098.
- Does David Preston accept Medicare?
- David Preston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Preston's NPI active?
- Yes — David Preston's NPI (1871559203) is active in the NPPES registry as of the last update on 2008-05-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.