Deirdre Heersink, DO
NPI 1417157298 · Family Medicine Physician · Topsham, ME
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Deirdre Heersink, DO is a Family Medicine Physician provider in Topsham, ME (NPI 1417157298).
Provider details
- NPI number
- 1417157298
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 2174 (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
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
377 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 192 | $100 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 49 | $169 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 35 | $143 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 33 | $73 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 29 | $69 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 167 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 587 | 58 |
| Apixabanbrand: Eliquis | 577 | 56 |
| Atorvastatin Calcium | 517 | 73 |
| Sertraline Hcl | 388 | 53 |
| Furosemide | 360 | 54 |
| Pantoprazole Sodium | 279 | 44 |
| Omeprazole |
Practice location
Mailing address
Additional practice locations (1)
- 37 Gray Birch DrAugusta, ME 04330-6105Phone: (207) 621-7108
Registry dates
- Enumerated
- 2007-07-20
- Last updated
- 2025-07-31
- Certified
- 2025-07-31
Frequently asked questions
- What is Deirdre Heersink's NPI number?
- Deirdre Heersink's National Provider Identifier (NPI) is 1417157298, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Deirdre Heersink's specialty?
- Deirdre Heersink is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Deirdre Heersink located?
- Deirdre Heersink's practice location on file with NPPES is 1 Wellness Way, Topsham, ME 04086-1768.
- What is Deirdre Heersink's phone number?
- The practice phone number listed in the NPPES registry for Deirdre Heersink is (207) 406-7667.
- Does Deirdre Heersink accept Medicare?
- Deirdre Heersink is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Deirdre Heersink's NPI active?
- Yes — Deirdre Heersink's NPI (1417157298) is active in the NPPES registry as of the last update on 2025-07-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.