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Pulmonary Disease

Andrew M. McClintock Greenberg, MD

Sees patients in San Ramon, CA · Fremont, CA · California

Summary

Dr. Andrew M. McClintock Greenberg, MD is a pulmonologist at 2222 Camino Ramon, San Ramon, CA 94583. Phone: (925) 820-4472. Accepts Medicare assignment. In 2024, Andrew M. McClintock Greenberg had 373 Original Medicare patients and 556 services. NPI 1861432403. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Pulmonologist (Medicare lists Pulmonary Disease)
  • Address: 2222 Camino Ramon, San Ramon, CA 94583 · Directions (1 more location)
  • Phone: (925) 820‑4472
  • Medicare: Accepts Medicare assignment
  • Group practice: Puja Thakkar DO Medical Corporation
  • Medical school: University Of Miami, Lm Miller School Of Medicine · graduated 1997 (29 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Andrew M. McClintock Greenberg, 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 Andrew M. McClintock Greenberg accept Medicare assignment?
Yes. Medicare's clinician data says Andrew M. McClintock Greenberg 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 Andrew M. McClintock Greenberg see?
In 2024, CMS data shows 373 Original Medicare patients and 556 services for Andrew M. McClintock Greenberg. This counts Original Medicare only and measures volume, not quality.
What is Andrew M. McClintock Greenberg's NPI number?
1861432403. 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 Andrew M. McClintock Greenberg, 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 patients373
Services billed to Medicare556
Different services or procedures13
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)289 services
  2. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)56 services
  3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)51 services
  4. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)46 services
  5. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)22 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 cholesterol75%
  • High blood pressure72%
  • Arthritis50%
  • COPD43%
  • Asthma38%
  • Diabetes31%

Practice locations

Addresses where Andrew M. McClintock Greenberg is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Andrew M. McClintock Greenberg as a member of this group (CMS data updated October 2, 2026).

  • Puja Thakkar DO Medical Corporation7 clinicians in the group

Specialties

Find other Pulmonary Disease doctors in California →

Other pulmonologists in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

All pulmonologists in California →

Other clinicians in Puja Thakkar DO Medical Corporation

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

Clinician information

CredentialMD
Medical schoolUniversity Of Miami, Lm Miller School Of Medicine
Graduation year1997 (29 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1861432403
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians