DR. FRANCIS ISIDORO M.D.
NPI 1548328933
Nuclear Medicine - Nuclear Imaging & Therapy in Stockton, CA

Q: What is Francis Isidoro's NPI number?

The NPI number for Francis Isidoro is 1548328933. It was assigned to this individual provider in the NPPES registry on December 5, 2006.

Q: What is Francis Isidoro's specialty?

The primary specialty registered for this NPI is Nuclear Medicine, specializing in Nuclear Imaging & Therapy, with taxonomy code 207UN0902X.

Q: When was this NPI record last updated?

The NPPES record for Francis Isidoro was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since December 05, 2006PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

2320 N CALIFORNIA ST, SUITE 2, STOCKTON, CA 95204(209) 466-2000(209) 466-2600 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Dr. Francis Isidoro M.d. NPPES

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

DR. FRANCIS ISIDORO M.D. (NPI 1548328933) is an individual nuclear imaging & therapy provider in Stockton, California, licensed in California (A91432) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1999).

NPPES Registry Identity

NPI1548328933

Entity TypeIndividualMale

Primary Taxonomy207UN0902X

Provider Legal NameDR. FRANCIS ISIDOROCredential: M.D.

Location Address2320 N CALIFORNIA ST, SUITE 2Stockton, CA 95204-5509

Mailing Address2320 N California St, Suite 2Stockton, CA 95204-5509 · (209) 466-2000 · Fax (209) 466-2600

Phone(209) 466-2000

Fax(209) 466-2600

Sole ProprietorNo

Medical School CMSOtherGraduated 1999

Enumeration DateDecember 5, 2006

Last NPPES UpdateSeptember 11, 2025

✔ NPI 1548328933 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNuclear Medicine · Nuclear Imaging & TherapyAllopathic & Osteopathic Physicians

Taxonomy Code207UN0902X

License✔ Licensed in CA · A91432

Definition

A nuclear medicine physician who specializes in nuclear imaging and therapy.

Also ListedNuclear MedicineTaxonomy 207U00000X · License A91432 (CA)

2320 N CALIFORNIA ST, Stockton, CA 95204

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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. Francis Isidoro M.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 ID1254432487

PECOS Enrollment IDI20070718000484

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 30

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.

Injection, regadenoson, 0.1 mg J2785

Regadenoson injection, 0.1 mg, is a medication used to help visualize the heart during a stress test. It works by increasing blood flow in the arteries of the heart. It's injected into a vein and is generally well-tolerated.

936 services231 patients

Technetium tc-99m sestamibi, diagnostic, per study dose A9500

Technetium Tc-99m Sestamibi is a diagnostic test used to create images of your heart or breast tissues. It involves a safe radioactive substance injection that helps doctors to detect any abnormalities or changes in these tissues.

751 services382 patients

Nuclear medicine studies of heart muscle at rest and with stress and spect 78452

Nuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.

367 services360 patients

Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries A9552

Fluorodeoxyglucose F-18 FDG is a radioactive drug used in PET scans. It helps doctors see how your tissues and organs are functioning. The drug is given in a specific dose, up to 45 millicuries, depending on your body size and the type of scan.

354 services325 patients

Nuclear medicine study from skull base to mid-thigh with ct scan 78815

A nuclear medicine study from skull base to mid-thigh with a CT scan involves using a small amount of radioactive material and CT imaging to examine body tissues and organs. This helps detect any abnormalities by providing detailed images of the body's internal structure.

339 services312 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) 93017

An exercise or drug-induced heart stress test with an ECG checks how your heart responds to stress. You'll either exercise on a treadmill or be given medication to stress your heart. An ECG then captures your heart's activity, helping detect any issues.

257 services253 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician 93016

An exercise or drug-induced heart stress test with ECG involves monitoring your heart's activity while it's under stress, either from exercise or medication. A doctor supervises the entire procedure to ensure safety and accuracy in results. This test helps detect heart problems.

233 services229 patients

Technetium tc-99m medronate, diagnostic, per study dose, up to 30 millicuries A9503

Technetium Tc-99m Medronate is a diagnostic procedure that uses a small amount of radioactive material to examine the health of your bones. It helps to detect bone diseases or abnormalities. The procedure is safe, with the radioactive substance naturally leaving your body after the test.

199 services198 patients

Nuclear medicine study, spect imaging, 1 area or single acquisition, single day imaging 78803

A nuclear medicine study with SPECT involves a safe, small amount of radioactive substance to help visualize body organs. SPECT, or Single Photon Emission Computed Tomography, creates detailed 3D images. This helps doctors diagnose and monitor conditions in a specific body area.

130 services130 patients

Iodine 1-123 ioflupane, diagnostic, per study dose, up to 5 millicuries A9584

Iodine 1-123 Ioflupane is a diagnostic procedure where a small radioactive substance is introduced into your body. It helps to create clear images of your brain, specifically to study the functioning of your brain's nerve cells.

119 services119 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician 93015

An exercise or drug-induced heart stress test with ECG is a procedure performed by a doctor to assess how your heart responds to exertion. It involves monitoring your heart's electrical activity while you exercise or after medication is given to mimic exercise effects.

106 services105 patients

Nuclear medicine study of bone taken at different times 78315

A nuclear medicine bone study involves injecting a small amount of radioactive material into your body. This material collects in the bones and is detected by a special camera to create images. These images are taken at different times to track changes and help diagnose bone conditions.

103 services103 patients

Nuclear medicine study of bone and/or joint whole body 78306

A nuclear medicine study of bone and/or joint whole body involves injecting a small amount of radioactive material into your body. This material travels to your bones and emits energy. A special camera captures this energy, creating images of your bones to help identify any abnormalities.

85 services84 patients

Iodine i-123 sodium iodide, diagnostic, per 100 microcuries, up to 999 microcuries A9516

Iodine I-123 sodium iodide is a diagnostic procedure used to assess thyroid function. It involves administering a small dose of radioactive iodine, which the thyroid gland absorbs. Images are then taken to monitor the iodine's distribution, helping to identify any thyroid abnormalities.

77 services44 patients

Injection, aminophyllin, up to 250 mg J0280

An aminophyllin injection is a treatment often used for severe asthma or other lung conditions. It helps to relax and open air passages in the lungs, making it easier to breathe. Up to 250 mg can be administered in one dose.

44 services44 patients

Nuclear medicine study of lymphatic system 78195

A nuclear medicine study of the lymphatic system involves injecting a safe, radioactive substance into your body. This substance travels through your lymphatic system and helps create images on a special camera. These images can help doctors diagnose conditions related to your immune system.

42 services42 patients

Technetium tc-99m tilmanocept, diagnostic, up to 0.5 millicuries A9520

Technetium Tc-99m Tilmanocept is a radioactive diagnostic agent used for imaging and lymph node mapping in the body. It helps doctors locate lymph nodes that may be affected by disease, aiding in effective treatment planning.

42 services42 patients

Nuclear medicine study whole body with ct scan 78816

A Nuclear Medicine Study with a CT Scan is a diagnostic procedure. It uses a small amount of radioactive substance and a CT scan to create detailed images of your body. These images help doctors diagnose, monitor, and treat various conditions.

36 services34 patients

Technetium tc-99m mertiatide, diagnostic, per study dose, up to 15 millicuries A9562

Technetium Tc-99m Mertiatide is a radiopharmaceutical diagnostic test. It involves the injection of a small dose of radioactive material to create images of your kidneys. This helps doctors evaluate kidney function and detect any abnormalities.

27 services27 patients

Nuclear medicine study of stomach to assess emptying 78264

A nuclear medicine study of the stomach assesses how quickly food leaves the stomach. A safe, radioactive substance is added to a meal. The radiation emitted is tracked, creating images that show the food's progress through the stomach. It's non-invasive and painless.

26 services26 patients

Nuclear medicine study of thyroid and thyroid function 78014

A nuclear medicine study of the thyroid involves using a small amount of radioactive material to evaluate thyroid function. It helps identify issues such as overactive or underactive thyroid. The procedure is safe and provides valuable information about your thyroid health.

25 services25 patients

Technetium tc-99m sulfur colloid, diagnostic, per study dose, up to 20 millicuries A9541

Technetium Tc-99m sulfur colloid is used in diagnostic imaging tests. It helps to highlight areas of concern in the body by emitting a small amount of radiation that can be detected by a special camera. This helps doctors to diagnose and monitor various health conditions.

25 services25 patients

Nuclear medicine study of parathyroid with spect 78071

A nuclear medicine study of the parathyroid with SPECT is a diagnostic test that uses a small amount of radioactive material and a special camera to create images of your parathyroid glands. This test helps identify any abnormalities, aiding in accurate diagnosis and treatment.

24 services24 patients

Nuclear medicine study of kidney, blood flow, and function 78707

A nuclear medicine study of the kidney is a diagnostic procedure. A small amount of radioactive material is injected into your body to highlight kidney function and blood flow. Images are then taken to assess how well your kidneys are working.

21 services21 patients

Technetium tc-99m macroaggregated albumin, diagnostic, per study dose, up to 10 millicuries A9540

Technetium Tc-99m Macroaggregated Albumin is a diagnostic procedure. It involves a safe radioactive substance injected into your bloodstream. The substance helps create clear images of blood flow in your lungs, aiding in accurate diagnosis.

20 services20 patients

Technetium tc-99m pentetate, diagnostic, aerosol, per study dose, up to 75 millicuries A9567

Technetium Tc-99m Pentetate is a nuclear medicine test that helps visualize the lungs. A harmless radioactive substance is inhaled as an aerosol, which then attaches to lung tissue. Images taken can show lung function and detect any abnormalities.

19 services19 patients

Nuclear medicine study of lung ventilation and circulation 78582

A nuclear medicine lung ventilation and circulation study uses a safe radioactive material to create images of air and blood flow in your lungs. It helps identify issues like blood clots or lung diseases. You inhale or receive an injection of this material, and a special camera captures the images.

18 services18 patients

Injection, furosemide, up to 20 mg J1940

Furosemide is a medication given via injection, often to help your body eliminate excess fluid or salt. It's typically used to treat issues like heart failure or high blood pressure. The dose mentioned, up to 20 mg, will be adjusted based on your specific needs.

17 services16 patients

Technetium tc-99m mebrofenin, diagnostic, per study dose, up to 15 millicuries A9537

Technetium Tc-99m Mebrofenin is a diagnostic test used to assess your liver function. A small amount of a radioactive substance is injected into your body, which helps create images of your liver for detailed examination. It's safe and essential for accurate diagnosis.

15 services14 patients

Nuclear medicine study of brain with metabolic evaluation 78608

A nuclear medicine study of the brain with metabolic evaluation involves using a safe radioactive substance and special imaging to assess brain function. It helps identify changes in brain metabolism that can indicate certain disorders.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95204 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

$133.94 typical visit price

range $58.87 – $176.60

Typical copayment $33.48 (range $14.71 – $44.15)

Most-billed visit code 99204

Established Patient

$103.36 typical visit price

range $19.28 – $144.60

Typical copayment $25.84 (range $4.82 – $36.15)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

100

Improvement Activities

Other Providers at the Same Location NPPES 7

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

STOCKTON MRI & MOLECULAR IMAGING MEDICAL CENTER INC

Clinic/Center (Magnetic Resonance Imaging (MRI))

2320 N CALIFORNIA ST, SUITE B
STOCKTON, CA 95204

San Joaquin County (209) 466-2000

DR. JANWYN LOY FUNAMURA M.D.

Pediatrics

2320 N CALIFORNIA ST, SUITE 2
STOCKTON, CA 95204

San Joaquin County (209) 953-3705

DR. JACK LEONARD FUNAMURA M.D.

Radiology (Diagnostic Radiology)

2320 N CALIFORNIA ST, SUITE 2
STOCKTON, CA 95204

San Joaquin County (209) 466-2000

DELTA RADIOLOGY MEDICAL GROUP, INC.

Specialist

2320 N CALIFORNIA ST, SUITE 3
STOCKTON, CA 95204

San Joaquin County (209) 466-5028

DR. OSCAR O ISIDORO MD

Clinic/Center (Radiology)

2320 N CALIFORNIA ST, SUITE 2
STOCKTON, CA 95204

San Joaquin County (209) 466-2000

DELTA RADIOLOGY MEDICAL GROUP, INC.

Radiology (Diagnostic Radiology)

2320 N CALIFORNIA ST, SUITE 3
STOCKTON, CA 95204

San Joaquin County (209) 466-5028

DR. JAVAD JAMSHIDI M.D.

Radiology (Diagnostic Ultrasound)

2320 N CALIFORNIA ST, SUITE 2
STOCKTON, CA 95204

San Joaquin County (209) 466-2000

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 Francis Isidoro's NPI number?

The NPI number for Francis Isidoro is 1548328933. It was assigned to this individual provider in the NPPES registry on December 5, 2006.

Where is Francis Isidoro located?

Francis Isidoro practices at 2320 N California St Suite 2, Stockton, CA 95204. The listed phone number is (209) 466-2000.

What is Francis Isidoro's specialty?

The primary specialty registered for this NPI is Nuclear Medicine, specializing in Nuclear Imaging & Therapy, with taxonomy code 207UN0902X.

Is Francis Isidoro enrolled in Medicare?

Yes. Francis Isidoro 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.

When was this NPI record last updated?

The NPPES record for Francis Isidoro was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.