DR. GREGORY SCOTT SPOWART (M.D.) – Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician, NPI 1669475430

DR. GREGORY SCOTT SPOWART (M.D.) is a healthcare provider. based in Mountain view, California. specializing in CARDIAC SURGERY. They hold the professional credentials M.D.. They hold a License No. G49645 (CA). The NPI Number for DR. GREGORY SCOTT SPOWART (M.D.) is 1669475430

Main info

Male
45 Years Of Experience
Accepts Medicare Assignment
Name
DR. GREGORY SCOTT SPOWART (M.D.)
NPI
1669475430
Phone
(650) 934-3546
Address
2350 W EL CAMINO REAL
Enumeration Date
24 May 2005
Last Update Date
1 May 2017

Doctor Profile

Medical School Name
UNIVERSITY OF CALIFORNIA, DAVIS SCHOOL OF MEDICINE
Secondary Phone
8316471123
Graduation Year
1981 (45 years ago)
PAC ID
9335192459
Group Practice PAC ID
6406901941
Professional Enrollment ID
I20081020000042
Address ID
CA939405302MO30XXXCTXX301
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:21State licenses:1Digital endpointsOther names

262 CARDIAC SURGERY in CA

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Provider Addresses for DR. GREGORY SCOTT SPOWART (M.D.)

  • West El Camino Real, Mountain View, Santa Clara County, California, 94039, United States

    FL 2

    MOUNTAIN VIEW, CA 940406201

    Phone: (650) 934-3546

    Fax: (650) 691-6193

    Type: Mailing

  • Holman / 23795 Holman Highway, Pacific Grove-Carmel Highway, Monterey County, California, 92921, United States

    STE 220

    MONTEREY, CA 939405900

    Phone: (831) 644-0225

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 2 Open Payments records for all available years, with a total value of $61.

Total Amount is formed as General ($61) + Research ($0) + Ownership ($0) = $61.

Last reported payment date: 2024-07-22 • Largest payer in this snapshot: Edwards Lifesciences Corporation ($36).

Total Amount

$61

General + Research + Ownership

Payments

2

Total payment records

General Amount

$61

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-07-22

Latest reported date

Top Companies

Largest payers in this snapshot

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: 2008-10-20

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
I20081020000042ICardiac SurgeryCATBD

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
33533Coronary artery bypass using artery graft, 1 graft4040$0
99222Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes3736$0
99203New patient office or other outpatient visit, 30-44 minutes3737$0
33508Harvest of vein using an endoscope3434$0
99204New patient office or other outpatient visit, 45-59 minutes2424$0
View full utilization report →

Insurance plans in this area (ZIP 94040)

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Provider's Procedures

DR. GREGORY SCOTT SPOWART (M.D.) performs procedures in CARDIAC SURGERY. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
CARDIAC SURGERYCA33405Replacement of left lower heart chamber valve using artificial valve on heart-lung machine2929
CARDIAC SURGERYCA33533Heart artery bypass to repair one artery6868

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: 6406901941View full group profile
NameSpecialtyState
Nurse PractitionerCA
Physician AssistantCA
R H E U M A T O L O G YMA
Physician AssistantCA
Internal MedicineMD
Internal MedicineCA
U R O L O G YKS
Family PracticeIL
E N D O C R I N O L O G YCA
-AR

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Frequently asked questions

How do payers reference DR. GREGORY SCOTT SPOWART (M.D.)?
For DR. GREGORY SCOTT SPOWART (M.D.), use NPI 1669475430 as the unique 10-digit identifier.
Is DR. GREGORY SCOTT SPOWART (M.D.) still an active registrant?
DR. GREGORY SCOTT SPOWART (M.D.) carries an active NPI according to the public dataset.
What kind of doctor is DR. GREGORY SCOTT SPOWART (M.D.)?
DR. GREGORY SCOTT SPOWART (M.D.) is associated with Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in the directory — Clinical services aligned with this taxonomy classification.
What locale is associated with DR. GREGORY SCOTT SPOWART (M.D.)?
Directory geography for DR. GREGORY SCOTT SPOWART (M.D.) centers on Mountain View, California.
What does 2 location(s) imply?
2 practice locations appear in the available data.

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