Nathan Weltman, MD PHD
NPI 1528453255 · Anesthesiology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathan Weltman, MD PHD is a Anesthesiology Physician provider in Boston, MA (NPI 1528453255).
Provider details
- NPI number
- 1528453255
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 0220 (SD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
392 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) |
|---|---|---|
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 69 | $44 |
| Ultrasonic Guidance for Blood Vessel Access76937 | 48 | $14 |
| Ultrasound of Heart With Probe in Esophagus, With Report93312 | 44 | $104 |
| Ultrasound of Heart Blood Flow, Valves and Chambers93320 | 41 | $17 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate and Valve Function93325 | 33 | $3 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 21 | $83 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$155 across 6 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
Additional practice locations (1)
- 1800 Orleans St Rm 6220Baltimore, MD 21287-0010Phone: (410) 955-7615Fax: (410) 955-9149
Registry dates
- Enumerated
- 2015-03-31
- Last updated
- 2020-07-06
- Certified
- 2020-07-06
Frequently asked questions
- What is Nathan Weltman's NPI number?
- Nathan Weltman's National Provider Identifier (NPI) is 1528453255, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Weltman's specialty?
- Nathan Weltman is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Nathan Weltman located?
- Nathan Weltman's practice location on file with NPPES is 75 Francis St, Boston, MA 02115.
- What is Nathan Weltman's phone number?
- The practice phone number listed in the NPPES registry for Nathan Weltman is (617) 732-5500.
- Does Nathan Weltman accept Medicare?
- Nathan Weltman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathan Weltman's NPI active?
- Yes — Nathan Weltman's NPI (1528453255) is active in the NPPES registry as of the last update on 2020-07-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.