Dr. William Graff, MD
- Medicare services, 2024
- 1,773
- Medicare patients, 2024
- 1,060
- Part D claims, 2024
- 3,024
- Hospital affiliations
- 5
- Industry payments
- $537
- Practice address
- 100 McGregor Street, Manchester, NH 03102
- Practice phone
- Call (603) 668-3545
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Graff's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. William Graff is a cardiologist in Manchester, New Hampshire
Dr. Graff practices at Catholic Medical Center in Manchester, New Hampshire, part of HCA Healthcare.
Dr. Graff's NPI, 1801872825, was assigned on December 21, 2005. Dr. Graff holds New Hampshire license 8159.
- NPI
- 1801872825NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8426013947
- NPI enumeration date
- December 21, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (603) 668-3545
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Graff practices at Catholic Medical Center in Manchester, New Hampshire
Dr. Graff's primary practice is Catholic Medical Center, at 100 McGregor Street, Manchester, NH 03102 in Hillsborough County. The practice phone is (603) 668-3545.
- Catholic Medical Center100 McGregor Street, Manchester, NH 03102 · Hillsborough CountyPhone(603) 668-3545
Source: Dmand AI Affiliation Data
Dr. William Graff is affiliated with 6 sites of care and 3 medical groups
Dr. Graff's primary practice is Catholic Medical Center in Manchester, New Hampshire, part of HCA Healthcare. Dr. Graff is also affiliated with Elliot Hospital. The medical group on file is Surgical Care Group. Dmand AI also links Dr. Graff to 3 more hospitals, 2 medical groups and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William Graff's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Graff practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Catholic Medical Center | Available with a free account |
| +5 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Graff is one of 127 cardiologists in New Hampshire
Cardiovascular disease is Dr. Graff's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Graff is licensed in New Hampshire.
Specialties and state licenses
- Cardiovascular disease, New HampshirePrimary
Cardiologists near Dr. Graff
Counts of cardiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. William Graff billed Medicare for 1,773 services in 2024
CMS data shows 1,773 Medicare services from Dr. Graff across 20 procedure codes in 2024, for 1,060 Medicare patients. Medicare paid $72,621 for them.
Dr. Graff's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,0122024: 1,1019%
- Office and hospital visits
- 2023: 7052024: 40742%
- Other services
- 2023: 02024: 204
- Imaging
- 2023: 522024: 6117%
Where Dr. Graff's Medicare services took place, 2024
- In an office27015%
- In a facility1,50385%
Dr. Graff compared with the New Hampshire median for cardiologists, 2024
- Dr. Graff
- New Hampshire median
- Medicare services
- 1,773vs 1,765Close to median
- Medicare patients
- 1,060vs 1,20312% below
- Part D claims
- 2,862vs 1,2502.3 times
Medians across 127 cardiologists in New Hampshire with Dmand AI profiles that report each measure.
Dr. Graff's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Graff treated 1,060 Medicare patients in 2024, average age 77
CMS counts 1,060 Medicare patients who saw Dr. Graff in 2024. The largest group is 75 to 84, with 437 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.64, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Graff's median patient age at 74, with 49% women.
Dr. Graff's Medicare patients by age, 2024
Dr. Graff's Medicare patients by sex, 2024
- Women52950%
- Men53150%
Chronic conditions among Dr. Graff's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Atrial fibrillation51%
- Ischemic heart disease51%
- Arthritis49%
- Heart failure45%
- Chronic kidney disease38%
- Diabetes32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Graff's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William Graff wrote 3,024 Medicare Part D claims in 2024
In 2024, Dr. Graff wrote 3,024 Medicare Part D claims for 566 patients. 85% of them were for generic drugs. CMS names the drug for 2,862 of them, across 36 drugs with 11 or more claims each, at $451,437 in total drug cost. In 2023, CMS named 2,342 claims across 38 drugs.
Dr. Graff's Part D claims by kind of drug, 2024
- Generic2,567 claims85%
- Brand-name457 claims15%
Dr. Graff's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,3422024: 2,86222%
Drugs named by CMS: 36 in 2024, 38 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. William Graff takes part in Medicare
Dr. Graff accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. William Graff received $537 in industry payments from 2018 to 2025
CMS Open Payments shows 19 general payments to Dr. Graff from 10 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 95% of the total. Baxter Healthcare paid the most, $123.
General payments to Dr. Graff by program year, 2018 to 2025
General payments to Dr. Graff by kind, 2018 to 2025
- Food and beverage$50895%
- Education$295%
Companies that paid Dr. Graff the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. William Graff's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. William Graff
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. William Graff's NPI number?
Dr. William Graff's NPI number is 1801872825. It was assigned on December 21, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. William Graff?
Dr. William Graff is a cardiologist in Manchester, New Hampshire. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. William Graff practice?
Dr. Graff practices at 100 McGregor Street, Manchester, NH 03102. Dr. Graff's primary practice is Catholic Medical Center in Manchester, New Hampshire, part of HCA Healthcare. Dmand AI also links Dr. Graff to 3 hospitals, 2 medical groups and 1 group practice or clinic.
What is Dr. William Graff's office phone number?
The practice phone on file for Dr. Graff is (603) 668-3545.
What is Dr. William Graff's medical license number?
Dr. Graff holds New Hampshire license 8159.
Which hospitals is Dr. William Graff affiliated with?
Dr. Graff practices at Catholic Medical Center in Manchester, New Hampshire. Dr. Graff is also affiliated with Elliot Hospital. Dmand AI links Dr. Graff to 3 more hospitals.
What medical group is Dr. William Graff part of?
Dr. Graff is linked to Surgical Care Group. Dmand AI links Dr. Graff to 2 more medical groups.
Does Dr. William Graff accept Medicare?
Yes. CMS data shows Dr. Graff billed Medicare for 1,773 services in 2024, and Dr. Graff accepts Medicare assignment.
How many Medicare patients does Dr. William Graff see?
CMS counts 1,060 Medicare patients who saw Dr. Graff in 2024, with an average age of 77.
What services does Dr. William Graff bill to Medicare?
In 2024, Dr. Graff's most billed Medicare services were heart test or procedure (93306), office visit, established patient (99214) and medicare service (G2211).
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What drugs does Dr. William Graff prescribe most?
In 2024 Medicare Part D data, Dr. Graff's most prescribed drugs by claims were Metoprolol Succinate, Eliquis and Atorvastatin Calcium.
Has Dr. William Graff received payments from drug or device companies?
CMS Open Payments shows $537 in general payments to Dr. Graff from 10 companies from 2018 to 2025. The largest total came from Baxter Healthcare.
How long has Dr. William Graff been practicing?
Dr. Graff graduated from medical school in 1982, 44 years ago.
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