Mark Stone, M.D.
NPI 1619031838 · Hematology (Internal Medicine) Physician · Newberg, OR
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Stone, M.D. is a Hematology (Internal Medicine) Physician provider in Newberg, OR (NPI 1619031838).
Provider details
- NPI number
- 1619031838
- Entity type
- Individual
- Primary specialty
- Hematology (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD24415 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
546 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) |
|---|---|---|
| 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 | 204 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 155 | $93 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 76 | $136 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 42 | $62 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 24 | $93 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Abiraterone Acetate | 97 | 20 |
| Prednisone | 87 | 29 |
| Acyclovir | 64 | 14 |
| Apixabanbrand: Eliquis | 56 | 15 |
| Dexamethasone | 50 | 27 |
| Prochlorperazine Maleate | 40 | 32 |
| Anastrozole | 37 | 12 |
| Sulfamethoxazole/Trimethoprim |
Practice location
Mailing address
Additional practice locations (1)
- 364 Se 8th AveSuite 108-AHillsboro, OR 97123-4253Phone: (503) 640-3687Fax: (503) 640-3688
Registry dates
- Enumerated
- 2006-12-21
- Last updated
- 2024-05-06
- Certified
- 2024-05-06
Frequently asked questions
- What is Mark Stone's NPI number?
- Mark Stone's National Provider Identifier (NPI) is 1619031838, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Stone's specialty?
- Mark Stone is listed in the NPPES registry with a primary specialty of Hematology (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Stone located?
- Mark Stone's practice location on file with NPPES is 1000 N Providence Dr Ste 310, Newberg, OR 97132-7582.
- What is Mark Stone's phone number?
- The practice phone number listed in the NPPES registry for Mark Stone is (503) 537-6040.
- Does Mark Stone accept Medicare?
- Mark Stone is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Stone's NPI active?
- Yes — Mark Stone's NPI (1619031838) is active in the NPPES registry as of the last update on 2024-05-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.