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Pulmonary Disease

Safy M. John, MD

Works at hospitals in Rockville, MD · Silver Spring, MD · Maryland

Summary

Dr. Safy M. John, MD is a pulmonologist at 2401 Research Blvd, Suite 350, Rockville, MD 20850. Phone: (301) 330-6982. Accepts Medicare assignment. In 2024, Safy M. John had 503 Original Medicare patients and 1,568 services. NPI 1982629739. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Safy M. John, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Safy M. John accept Medicare assignment?
Yes. Medicare's clinician data says Safy M. John accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Safy M. John see?
In 2024, CMS data shows 503 Original Medicare patients and 1,568 services for Safy M. John. This counts Original Medicare only and measures volume, not quality.
What is Safy M. John's NPI number?
1982629739. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Safy M. John, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients503
Services billed to Medicare1,568
Different services or procedures23
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Critical care, first 30-74 minutes (99291)388 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)269 services
  3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)184 services
  4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)164 services
  5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)91 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Ischemic heart disease52%
  • Diabetes49%
  • Arthritis49%
  • Chronic kidney disease45%

Hospitals where Safy M. John works

Medicare's Facility Affiliation Data lists Safy M. John at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Safy M. John is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Safy M. John as a member of these groups (CMS data updated October 2, 2026).

  • Usacs Critical Care Medicine Services East, LLC30 clinicians in the group
  • Ajit P Kuruvilla MD LLC3 clinicians in the group

Specialties

Find other Pulmonary Disease doctors in Maryland →

Other pulmonologists in Rockville

Clinicians with the same Medicare primary specialty in Rockville, MD — not a recommendation.

All pulmonologists in Rockville →

Other clinicians in Usacs Critical Care Medicine Services East, LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year1983 (43 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1982629739
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians