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DR. JOHN GILLY GRAHAM M.D., PH.D
NPI 1225440746
Internal Medicine - Endocrinology, Diabetes & Metabolism in San Francisco, CA

Active since June 02, 2014PECOS EnrolledAccepts Medicare Assignment
400 PARNASSUS AVE # A550, SAN FRANCISCO, CA 94143(415) 353-2350(415) 353-2337 Get Directions Write a Review

NPPES record last updated: April 18, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 18, 2023, Sep 30, 2020, Sep 18, 2020 and 1 more (4 updates tracked since 2020).

About Dr. John Gilly Graham M.d., Ph.d NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN GILLY GRAHAM M.D., PH.D (NPI 1225440746) is an individual endocrinology, diabetes & metabolism provider in San Francisco, California, licensed in California (C201229) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS, is affiliated with Mount Sinai Hospital, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1225440746
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameDR. JOHN GILLY GRAHAMCredential: M.D., PH.D
Location Address400 PARNASSUS AVE # A550San Francisco, CA 94143-2202
Mailing Address1 Gustave L Levy Pl # 1118New York, NY 10029-6504
Phone(415) 353-2350
Fax(415) 353-2337
Sole ProprietorNo
Medical School CMSNorthwestern University Feinberg Medical SchoolGraduated 2014
Enumeration DateJune 2, 2014
Last NPPES UpdateApril 18, 20254 updates tracked since enumeration
NPPES CertifiedApril 18, 2025
✔ NPI 1225440746 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
Licenses✔ Licensed in CA · C201229✔ Licensed in NY · 288970-1
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
400 PARNASSUS AVE # A550, San Francisco, CA 94143
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Secondary Practice Locations 3

Location 1300 Cadman Plz W Fl 18Brooklyn, NY 11201-3226 · Phone (929) 210-6000 · Fax (929) 210-6005
Location 21 Gustave L Levy PlNew York, NY 10029-6504 · Phone (212) 241-6500
Location 35 E 98th StNew York, NY 10029-6501 · Phone (212) 241-3422

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. John Gilly Graham M.d., Ph.d is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8325339062
PECOS Enrollment IDI20250502002617
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
288 services209 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
131 services119 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
96 services85 patients
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 95251
This procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.
80 services54 patients
Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 99211
This service involves an outpatient visit for established patients who may not need direct interaction with a healthcare professional. It could include reviewing test results, monitoring existing conditions, or adjusting treatment plans. It's typically done remotely, ensuring your comfort and convenience.
66 services47 patients
Dxa bone density measurement of hip, pelvis, spine 77080
A DXA bone density measurement is a simple, quick, and non-invasive procedure that assesses the strength of your bones. This test uses X-rays to measure the amount of minerals, mainly calcium, in the hip, pelvis, and spine. It helps in early detection of osteoporosis or other bone diseases.
64 services64 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mount Sinai Hospital

Acute Care Hospitals · New York, NY
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330024
LocationOne Gustave L Levy PlaceNew York, NY 10029 · New York County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94143 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
20 suppliers47 claims159 services$6.31 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
12 suppliers27 claims44 services$1.17 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
11 suppliers125 claims125 services$189.03 avg. paid by Medicare
Receiver (monitor), dedicated, for use with therapeutic glucose continuous monitor system K0554
DME-Other DME · category DE017N
5 suppliers12 claims12 services$204.02 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. AYE HAMAR KHINE MD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
400 PARNASSUS AVE # A550
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2530
NIRMITA RASHMIKANT DOSHI MD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
400 PARNASSUS AVE # A550
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2350

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Graham's NPI number?

The NPI number for John Graham is 1225440746. It was assigned to this individual provider in the NPPES registry on June 2, 2014.

Where is John Graham located?

John Graham practices at 400 Parnassus Ave # A550, San Francisco, CA 94143. The listed phone number is (415) 353-2350.

What is John Graham's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is John Graham enrolled in Medicare?

Yes. John Graham is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is John Graham affiliated with any hospitals?

According to CMS data, John Graham is affiliated with Mount Sinai Hospital.

When was this NPI record last updated?

The NPPES record for John Graham was last updated on April 18, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.