Halward Blegen, MD
NPI 1134121502 · Internal Medicine Physician · Sagamore Beach, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Halward Blegen, MD is a Internal Medicine Physician provider in Sagamore Beach, MA (NPI 1134121502).
Provider details
- NPI number
- 1134121502
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 49939 (MA)
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
804 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 | 240 | $130 |
| Advance Care Planning, First 30 Minutes99497 | 130 | $82 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 121 | $19 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 120 | $131 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 111 | $92 |
| Transitional Care Management Services for Problem of High Complexity99496 | 24 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 45 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lisinopril | 222 | 60 |
| Atorvastatin Calcium | 110 | 29 |
| Lovastatin | 91 | 25 |
| Amlodipine Besylate | 85 | 23 |
| Losartan Potassium | 77 | 18 |
| Tramadol Hcl | 75 | 16 |
| Omeprazole | 72 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-15
- Last updated
- 2012-07-02
Frequently asked questions
- What is Halward Blegen's NPI number?
- Halward Blegen's National Provider Identifier (NPI) is 1134121502, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Halward Blegen's specialty?
- Halward Blegen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Halward Blegen located?
- Halward Blegen's practice location on file with NPPES is 180 State Rd, Sagamore Beach, MA 02562-2362.
- What is Halward Blegen's phone number?
- The practice phone number listed in the NPPES registry for Halward Blegen is (508) 888-7221.
- Does Halward Blegen accept Medicare?
- Halward Blegen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Halward Blegen's NPI active?
- Yes — Halward Blegen's NPI (1134121502) is active in the NPPES registry as of the last update on 2012-07-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.