Dr. James Constant , MD
Surgery β’ San Francisco, CA
2238 Geary Blvd, 2 Se
San Francisco, CA 941153416
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on November 1, 2006; this date does not establish years in practice.
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Published CMS data list 16 Medicare Part D prescriptions, including refills, in 2023.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2023. Published rows only; this is not a quality measure.
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Published Part D records, 2023:
- Oxycodone Hcl β 16 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2023. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table Β· Guide: How to read Medicare Part D prescriber data
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Medicare Part D prescriptions went from 17 in 2014 to 16 in 2023.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2014β2023.
Practice Location & Contact Primary Location
2238 Geary Blvd
2 Se
San Francisco, CA 941153416
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Permanente Medical Group Inc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026
University Of Michigan Medical School
1990
What Public CMS Data Show
Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
16 standardized 30-day fills in 2023
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$119 in 2023
The total cost of these prescriptions in 2023, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2023.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019β2025.
Years since graduation
36 years (graduated 1990)
CMS Doctors and Clinicians data list 1990 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians, CMS release of October 2, 2026; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.
Enrolled in Medicare (PECOS)
Dr. Constant has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Constant as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in San Francisco and California
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Constant are from 2023.
216 active clinicians are listed under Surgery with a practice address in San Francisco, CA (3,129 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in San Francisco
20.4% of these 216 clinicians have the CMS telehealth indicator.
46.3% of these 216 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part D prescriptions
Medicare Part D prescriptions went from 17 in 2014 to 16 in 2023.
- 2014: 17
- 2019: 20
- 2020: 13
- 2022: 13
- 2023: 16
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30-day fills
30-day fills went from 17 in 2014 to 16 in 2023.
- 2014: 17
- 2019: 20
- 2020: 13
- 2022: 13
- 2023: 16
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Part D drug cost
Part D drug cost went from $207 in 2014 to $119 in 2023.
- 2014: $207
- 2019: $160
- 2020: $122
- 2022: $198
- 2023: $119
Sources: CMS Medicare Part D Prescribers (2023), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2023.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Oxycodone Hcl | Oxycodone Hcl | 16 | 64 | $119.15 | 15 |
Source: CMS Part D by Provider and Drug, 2023; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 208600000X
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - GENERAL SURGERY
I20101208000816
CA
1456548049
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026
Permanente Medical Group Inc
2200 Ofarrell St, San Francisco, CA 941153357
Phone: 4158332000
Permanente Medical Group Inc
2425 Geary Blvd, San Francisco, CA 941153358
Phone: 4158332200
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine - Pulmonary Disease
Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Master of Science in Nursing, Family Nurse Practitioner
Nurse Practitioner - Family
Master of Science in Nursing, Family Nurse Practitioner
Physical Therapist
Doctor of Physical Therapy
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1800 HARRISON ST FL 7, OAKLAND, CA 946123466 (Tel: 5106256262)
NPI status registered as active in NPPES database
Registered at 2238 GEARY BLVD, 2 SE, SAN FRANCISCO, CA 941153416 (Tel: 4158330125)
Registered at 1800 HARRISON ST FL 7, OAKLAND, CA 946123429 (Tel: 5106256262)
Recorded as JAMES CONSTANT, MD
Surgery (license number reported to NPPES: CA G73408)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Surgery Specialists in San Francisco
- Dr. David Cron, MD
- Dr. Peter Stock, MD
- Dr. Qimeng Gao, MD
- Dr. William Bry, MD
- Eugene Groeger
- Dr. Ian Soriano, MD
Mailing Address
1800 Harrison St Fl 7
Oakland, CA 946123466
Phone: 5106256262