Paul Sax, MD
NPI 1306809892 · Infectious Disease Physician · Boston, MA
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Paul Sax, MD is a Infectious Disease Physician provider in Boston, MA (NPI 1306809892).
Provider details
- NPI number
- 1306809892
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 71973 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
418 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 97 | $101 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 97 | $123 |
| 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 | 54 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 45 | $136 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 39 | $82 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 193 | 21 |
| Emtricitab/Rilpiviri/Tenof Alabrand: Odefsey | 109 | — |
| Dolutegravir Sodiumbrand: Tivicay | 92 | — |
| Dolutegravir Sodium/Lamivudinebrand: Dovato | 63 | — |
| Emtricitabine/Tenofov Alafenambrand: Descovy | 54 | — |
| Doravirinebrand: Pifeltro | 29 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$28,352 across 20 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-07
- Last updated
- 2012-07-04
Frequently asked questions
- What is Paul Sax's NPI number?
- Paul Sax's National Provider Identifier (NPI) is 1306809892, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Paul Sax's specialty?
- Paul Sax is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Paul Sax located?
- Paul Sax's practice location on file with NPPES is 75 Francis St, Boston, MA 02115.
- What is Paul Sax's phone number?
- The practice phone number listed in the NPPES registry for Paul Sax is (617) 732-8881.
- Does Paul Sax accept Medicare?
- Paul Sax is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Paul Sax's NPI active?
- Yes — Paul Sax's NPI (1306809892) is active in the NPPES registry as of the last update on 2012-07-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.