William Graff, M.D.
NPI 1801872825 · Cardiovascular Disease Physician · Manchester, NH
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Graff, M.D. is a Cardiovascular Disease Physician provider in Manchester, NH (NPI 1801872825).
Provider details
- NPI number
- 1801872825
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 8159 (NH)
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
1,773 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) |
|---|---|---|
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 432 | $66 |
| Anticoagulant Management of Patient Taking Warfarin93793 | 165 | $11 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 131 | $95 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 117 | $126 |
| 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 | 110 | $16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 36 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 459 | 147 |
| Apixabanbrand: Eliquis | 288 | 79 |
| Atorvastatin Calcium | 271 | 90 |
| Amlodipine Besylate | 178 | 62 |
| Lisinopril | 176 | 57 |
| Furosemide | 170 | 56 |
| Metoprolol Tartrate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-21
- Last updated
- 2021-03-15
- Certified
- 2021-03-15
Frequently asked questions
- What is William Graff's NPI number?
- William Graff's National Provider Identifier (NPI) is 1801872825, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Graff's specialty?
- William Graff is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is William Graff located?
- William Graff's practice location on file with NPPES is 100 Mcgregor St, Manchester, NH 03102-3730.
- What is William Graff's phone number?
- The practice phone number listed in the NPPES registry for William Graff is (603) 663-6657.
- Does William Graff accept Medicare?
- William Graff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Graff's NPI active?
- Yes — William Graff's NPI (1801872825) is active in the NPPES registry as of the last update on 2021-03-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.