Physician Profile
Unclaimed ProfileAbout WILLIAM
Based in Boston, MA, Jeffrey Harrison William, M.D. is listed in the NPI registry under nephrology. Jeffrey graduated from Tufts University School of Medicine in 2010. Jeffrey is also listed as specializing in internal medicine. According to Medicare claims data, Jeffrey cared for 1,807 Medicare patients across 3,232 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (617) 632-9880
- Email not available
Practice Locations
171 PILGRIM RD LIBBY 2
Boston, MA 02215
Procedures Most Often Billed to Medicare
3,232 services · 1,807 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
227 |
| Dialysis services, 2-3 physician visits per month (20 years or older) | Treatment | 90961 |
121 |
| Dialysis services, 4 or more physician visits per month (20 years or older) | Treatment | 90960 |
63 |
| Creatinine level to test for kidney function or muscle injury | Lab test | 82570 |
226 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
219 |
| Urine microalbumin (protein) level | Lab test | 82043 |
199 |
| Parathormone (parathyroid hormone) level | Lab test | 83970 |
186 |
| Magnesium level | Lab test | 83735 |
184 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
162 |
| Phosphate level | Lab test | 84100 |
150 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other nephrology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Also at this address 3
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other nephrology specialists in Boston 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Tufts University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2010 at Tufts University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in MA who bill this service to Medicare most often.
Common questions
What does Dr. William specialize in?
Dr. William is a nephrology in Boston, MA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “NEPHROLOGY”.
NPI registry
Where is Dr. William located?
Dr. William is listed at 171 PILGRIM RD LIBBY 2, Boston, MA 02215. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. William's phone number?
The number on file is (617) 632-9880. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. William's NPI number?
Dr. William's National Provider Identifier is 1033439716. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. William go to medical school?
Dr. William attended Tufts University School of Medicine, graduating in 2010. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. William been practicing?
Dr. William has 16 years experience. Calculated from a graduation year of 2010, reported in the CMS National Downloadable File.
CMS public data
What does Dr. William do most often?
According to Medicare billing data, Dr. William performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as dialysis services, 2-3 physician visits per month and dialysis services, 4 or more physician visits per month, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. William confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. William. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.