Donald Greggain, M.D.
NPI 1154328052 · Family Medicine Physician · Lewiston, ID
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Donald Greggain, M.D. is a Family Medicine Physician provider in Lewiston, ID (NPI 1154328052).
Provider details
- NPI number
- 1154328052
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 32331 (WA)
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 tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,066 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 279 | $61 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 231 | $88 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 145 | $120 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 144 | $61 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 128 | $116 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 188 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 435 | 69 |
| Levothyroxine Sodium | 391 | 100 |
| Atorvastatin Calcium | 328 | 89 |
| Losartan Potassium | 252 | 72 |
| Omeprazole | 246 | 66 |
| Gabapentin | 213 | 48 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$124 across 2 records (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
Additional practice locations (2)
- 222 Southway Ave Ste 2aLewiston, ID 83501Phone: (208) 750-3840Fax: (208) 750-3839
- 1267 Belmont WayClarkston, WA 99403-2844Phone: (509) 751-1500Fax: (509) 751-1504
Registry dates
- Enumerated
- 2005-07-07
- Last updated
- 2024-12-26
- Certified
- 2024-12-26
Frequently asked questions
- What is Donald Greggain's NPI number?
- Donald Greggain's National Provider Identifier (NPI) is 1154328052, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Greggain's specialty?
- Donald Greggain is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Donald Greggain located?
- Donald Greggain's practice location on file with NPPES is 415 6th St Ste 3c, Lewiston, ID 83501-2431.
- What is Donald Greggain's phone number?
- The practice phone number listed in the NPPES registry for Donald Greggain is (208) 750-3840.
- Does Donald Greggain accept Medicare?
- Donald Greggain is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Donald Greggain's NPI active?
- Yes — Donald Greggain's NPI (1154328052) is active in the NPPES registry as of the last update on 2024-12-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.