Jonathan Holdorf, M.D.
NPI 1639339989 · Pulmonary Disease Physician · Worcester, MA
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Holdorf, M.D. is a Pulmonary Disease Physician provider in Worcester, MA (NPI 1639339989).
Provider details
- NPI number
- 1639339989
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 256032 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
414 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 219 | $117 |
| Critical Care, First 30-74 Minutes99291 | 84 | $209 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 48 | $171 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 26 | $78 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 21 | $114 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 16 |
Practice location
Mailing address
Additional practice locations (1)
- 157 Union StMarlborough, MA 01752-1228Phone: (508) 486-5678
Registry dates
- Enumerated
- 2008-06-11
- Last updated
- 2024-06-06
- Certified
- 2024-06-06
Frequently asked questions
- What is Jonathan Holdorf's NPI number?
- Jonathan Holdorf's National Provider Identifier (NPI) is 1639339989, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Holdorf's specialty?
- Jonathan Holdorf is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Holdorf located?
- Jonathan Holdorf's practice location on file with NPPES is 55 Lake Ave N, Worcester, MA 01655-0002.
- What is Jonathan Holdorf's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Holdorf is (508) 334-1975.
- Does Jonathan Holdorf accept Medicare?
- Jonathan Holdorf is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Holdorf's NPI active?
- Yes — Jonathan Holdorf's NPI (1639339989) is active in the NPPES registry as of the last update on 2024-06-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.