DR. JOHN S MACGREGOR (MD) – Cardiovascular Disease Physician, NPI 1831131846

DR. JOHN S MACGREGOR (MD) is a healthcare provider. based in San francisco, California. specializing in CARDIOVASCULAR DISEASE (CARDIOLOGY), INTERNAL MEDICINE. They hold the professional credentials MD. They hold a License No. G56033 (CA). The NPI Number for DR. JOHN S MACGREGOR (MD) is 1831131846

Main info

Male
42 Years Of Experience
Accepts Medicare Assignment
Name
DR. JOHN S MACGREGOR (MD)
NPI
1831131846
Phone
(415) 206-8327
Address
2537 15TH ST
Enumeration Date
12 June 2006
Last Update Date
12 January 2012

Doctor Profile

Medical School Name
JS WEILL MEDICAL COLLEGE, CORNELL UNIVERSITY
Secondary Phone
6282063503
Graduation Year
1984 (42 years ago)
PAC ID
7618923517
Group Practice PAC ID
5496668410
Professional Enrollment ID
I20050323001249
Address ID
CA941103518SA1001XAVEX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness75
Years active:20State licenses:1Digital endpointsOther names

3,010 CARDIOVASCULAR DISEASE (CARDIOLOGY) in CA

Loading map...

Provider Addresses for DR. JOHN S MACGREGOR (MD)

  • 2537, 15th Street, Castro District, San Francisco, California, 94143, United States

    SAN FRANCISCO, CA 941141227

    Phone: (415) 206-8327

    Type: Mailing

  • San Francisco General Hospital, 1001, Potrero Avenue, San Francisco, California, 94158, United States

    DIVISION OF CARDIOLOGY, ROOM 5G1

    SAN FRANCISCO, CA 941103518

    Phone: (415) 206-8315

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

CMS reports 7 Open Payments records for all available years, with a total value of $209.

Total Amount is formed as General ($209) + Research ($0) + Ownership ($0) = $209.

Last reported payment date: 2024-12-30 • Largest payer in this snapshot: Terumo Medical Corporation ($62).

Total Amount

$209

General + Research + Ownership

Payments

7

Total payment records

General Amount

$209

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-30

Latest reported date

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2005-03-23

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20050323001249ICardiovascular Disease (Cardiology)CATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
G0500Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito9189$0
93458Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist3131$0
93454Insertion of tube in coronary artery for diagnosis with review by radiologist2019$0
93451Insertion of tube in right heart chambers for measurement1413$0
93460Insertion of tube in right and left heart chambers and coronary artery for diagnosis with review by radiologist1414$0
View full utilization report →

Insurance plans in this area (ZIP 94114)

Loading plans...

Provider's Procedures

DR. JOHN S MACGREGOR (MD) performs procedures in CARDIOVASCULAR DISEASE (CARDIOLOGY). See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
CARDIOVASCULAR DISEASE (CARDIOLOGY)CA93458Insertion of catheter in left heart for imaging of blood vessels or grafts and left lower heart4948

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 5496668410View full group profile
NameSpecialtyState
O B S T E T R I C S/ G Y N E C O L O G YCA
-CA
-MD
-CA
Orthopedic SurgeryCA
O P H T H A L M O L O G YCA
Anesthesiology, Critical Care (Intensivists)CA
Internal MedicineCA
Orthopedic SurgeryCA
O B S T E T R I C S/ G Y N E C O L O G YNY

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

How do I look up DR. JOHN S MACGREGOR (MD) by NPI?
Use NPI 1831131846 when you need to reference DR. JOHN S MACGREGOR (MD) in forms, claims, or directories.
Is DR. JOHN S MACGREGOR (MD) active in the national directory?
DR. JOHN S MACGREGOR (MD)'s public NPI profile is in an active state.
What kind of provider is DR. JOHN S MACGREGOR (MD)?
The page reflects Cardiovascular Disease Physician for DR. JOHN S MACGREGOR (MD). Clinical services aligned with this taxonomy classification.
Where is DR. JOHN S MACGREGOR (MD)'s primary listing?
We display San Francisco, California because that is what the record indicates for DR. JOHN S MACGREGOR (MD).
Does Medicare enrollment show here?
Medicare enrollment screens are separate from the basic NPI extract shown here.

Similar Providers

DR. MICHAEL ANDREW BROWN (M.D.)

Cardiovascular Disease Physician
Treat Boulevard, Walnut Creek, Contra Costa County, California, 94519, United States
NPI: 1093719056

DR. HENNESSEY TSENG (M.D.)

Cardiovascular Disease Physician
Treat Boulevard, Walnut Creek, Contra Costa County, California, 94519, United States
NPI: 1003811746

DR. PAUL P HO (M.D)

Cardiovascular Disease Physician
Treat Boulevard, Walnut Creek, Contra Costa County, California, 94519, United States
NPI: 1730186677

PHOEBE A. ASHLEY (M.D.)

Cardiovascular Disease Physician
505 PARNASSUS AVE # 124
NPI: 1740288901

DR. SUNG WHAN CHOI (M.D.)

Cardiovascular Disease Physician
2299, Sacramento Street, Pacific Heights, San Francisco, California, 94115, United States
NPI: 1013917046

JOHN S. EDELEN (M.D.)

Interventional Cardiology Physician
Broadway Webster Medical Plaza, 3300, Webster Street, Pill Hill, Oakland, Alameda County, California, 94609, United States
NPI: 1831183383

DR. JOSHUA DAVID MOSS (M.D.)

Clinical Cardiac Electrophysiology Physician
5758 S Maryland Ave
NPI: 1235129073

DR. RICHARD H HONGO (M.D.)

Clinical Cardiac Electrophysiology Physician
165 Rowland Way Ste 201
NPI: 1386635787