PATRICK R. MULLIGAN M.D.
NPI 1710321138
Radiology - Diagnostic Radiology in San Mateo, CA

Q: What is Patrick Mulligan's NPI number?

The NPI number for Patrick Mulligan is 1710321138. It was assigned to this individual provider in the NPPES registry on April 29, 2013.

Q: What is Patrick Mulligan's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Q: When was this NPI record last updated?

The NPPES record for Patrick Mulligan was last updated on December 5, 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 April 29, 2013PECOS Enrolled

100 S SAN MATEO DR, SAN MATEO, CA 94401(650) 696-4515(650) 696-4626 Get Directions Write a Review

NPPES record last updated: December 5, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Dec 5, 2025, Mar 19, 2021 (2 updates tracked since 2021).

On this page

About Patrick R. Mulligan M.d. NPPES

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

PATRICK R. MULLIGAN M.D. (NPI 1710321138) is an individual diagnostic radiology provider in San Mateo, California, licensed in California (A134461) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS, is affiliated with Hudson Valley Hospital Center, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1710321138

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NamePATRICK R. MULLIGANCredential: M.D.

Location Address100 S SAN MATEO DRSan Mateo, CA 94401-3805

Mailing AddressPo Box 6102Novato, CA 94948-6102 · (415) 884-3404 · Fax (415) 883-0877

Phone(650) 696-4515

Fax(650) 696-4626

Sole ProprietorNo

Medical School CMSEmory University School Of MedicineGraduated 2013

Enumeration DateApril 29, 2013

Last NPPES UpdateDecember 5, 20252 updates tracked since enumeration

NPPES CertifiedDecember 5, 2025

✔ NPI 1710321138 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

License✔ Licensed in CA · A134461

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

100 S SAN MATEO DR, San Mateo, CA 94401

Open in Google Maps ↗

Secondary Practice Locations 3

Location 13600 Minnesota Dr Ste 800Edina, MN 55435-7915 · Phone (952) 595-1301 · Fax (612) 294-4903

Location 2222 W 39th AveSan Mateo, CA 94403-4364 · Phone (650) 573-2222 · Fax (650) 573-2122

Location 31501 Trousdale DrBurlingame, CA 94010-4506 · Phone (650) 696-5515 · Fax (650) 696-5280

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Mountain Health CO-OP.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Patrick R. Mulligan M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2062845886

PECOS Enrollment IDI20191210001142, I20240117000252

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.

Medicare Billing Reassignments

Medicare enrollment records show Patrick Mulligan reassigns Medicare billing to 15 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

San Mateo County

1.4 mi

Community/Behavioral Health

1950 ALAMEDA DE LAS PULGAS
San Mateo, CA 94403

Reassigned Medicare billing, California enrollment
Medicare enrollment name: County Of San Mateo
Also billed through NPI 1831268580 (California)
597 clinicians in this Medicare group

NPI 1710908272 (650) 573-3571

Sutter Bay Medical Foundation

13 mi

Multi-Specialty

795 EL CAMINO REAL
Palo Alto, CA 94301

Reassigned Medicare billing, California enrollment
4,479 clinicians in this Medicare group

NPI 1013950807 (650) 321-4121

California Advanced Imaging Medical Associates Inc

16 mi

Diagnostic Radiology

1101 VAN NESS AVE
San Francisco, CA 94109

Reassigned Medicare billing, California enrollment
96 clinicians in this Medicare group

NPI 1881646909 (415) 600-6000

Sutter Valley Medical Foundation

48 mi

Multi-Specialty

2720 LOW CT
Fairfield, CA 94534

Reassigned Medicare billing, California enrollment
3,056 clinicians in this Medicare group

NPI 1184859894 (707) 428-2731

Regents Of The Univ Of Ca

74 mi

Medical Microbiology

3146 TUPPER HALL
Davis, CA 95616

Reassigned Medicare billing, California enrollment
2,570 clinicians in this Medicare group

NPI 1053304071 (530) 752-9402

Southern Monterey County Memorial Hospital

115 mi

Critical Access

300 CANAL ST
King City, CA 93930

Reassigned Medicare billing, California enrollment
124 clinicians in this Medicare group

NPI 1114917564 (831) 385-6000

Claremont Imaging Associates, A Medical Corporation

351 mi

Diagnostic Radiology

255 E BONITA AVENUE
Pomona, CA 91769

Reassigned Medicare billing, California enrollment
53 clinicians in this Medicare group

NPI 1619068921 (909) 450-0393

Regents Of The University Of California

442 mi

Diagnostic Radiology

200 W ARBOR DR
San Diego, CA 92103

Reassigned Medicare billing, California enrollment
360 clinicians in this Medicare group

NPI 1558463927 (800) 926-8273

Central Montana Medical Facilities, Inc

928 mi

Critical Access

408 WENDELL AVE
Lewistown, MT 59457

Reassigned Medicare billing, Montana enrollment
173 clinicians in this Medicare group

NPI 1790798387 (406) 535-7711

Sidney Health Center

1,156 mi

Emergency Care

216 14TH AVE SW
Sidney, MT 59270

Reassigned Medicare billing, Montana enrollment
Also billed through NPI 1285719161 (Montana)
149 clinicians in this Medicare group

NPI 1568532802 (406) 488-2100

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 58

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.

X-ray of chest, 1 view 71045

A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.

635 services571 patients

Ct scan of abdomen and pelvis with contrast 74177

A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.

259 services256 patients

Ct scan head or brain without contrast 70450

A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.

258 services255 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

202 services200 patients

Ct scan of abdomen and pelvis without contrast 74176

A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.

119 services118 patients

Ct scan of chest without contrast 71250

A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.

89 services88 patients

Ct scan of blood vessels of chest with contrast 71275

A CT scan of the chest with contrast is a non-invasive imaging test. It uses X-rays and a special dye to get detailed images of your blood vessels in the chest. This helps in diagnosing conditions related to heart and lungs.

89 services89 patients

Ct scan of chest with contrast 71260

A CT scan of the chest with contrast is an imaging procedure. A special dye (contrast) is used to highlight specific areas in your body, providing clearer pictures of your chest. This helps in diagnosing conditions related to your lungs, heart, and other chest structures.

85 services84 patients

Ct scan of upper spine without contrast 72125

A CT scan of the upper spine without contrast is a non-invasive imaging test that uses X-rays to capture detailed images of your neck and upper back. It helps in identifying issues like fractures, tumors, or infections. No dye (contrast) is used in this scan.

83 services83 patients

X-ray of chest, 2 views 71046

69 services68 patients

X-ray of hip, 2-3 views 73502

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

64 services62 patients

X-ray of shoulder, minimum of 2 views 73030

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

62 services58 patients

X-ray of shoulder, minimum of 2 views 73030

60 services54 patients

X-ray of abdomen, 1 view 74018

An X-ray of the abdomen, 1 view, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the structures in your abdomen, such as the stomach, liver, and intestines. This can help identify issues like blockages, infections, or injuries.

55 services54 patients

X-ray of knee, 3 views 73562

An X-ray of the knee, 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the knee from three different angles. This helps medical professionals to diagnose and monitor conditions like arthritis, fractures, or infections. The process is quick and painless.

49 services49 patients

X-ray of knee, 4 or more views 73564

An X-ray of the knee, 4 or more views, is a non-invasive imaging test. It involves capturing multiple images of your knee from different angles. This helps in diagnosing conditions such as fractures, arthritis, or infections. The procedure is quick and painless.

41 services35 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.

38 services38 patients

X-ray of wrist, minimum of 3 views 73110

An X-ray of the wrist, minimum of 3 views, is a diagnostic procedure that uses radiation to create images of your wrist from different angles. This helps detect fractures, infections, or other abnormalities for accurate diagnosis and treatment planning.

36 services33 patients

X-ray of hand, minimum of 3 views 73130

An X-ray of the hand, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones in your hand from different angles. This helps in diagnosing fractures, infections, arthritis, or other abnormalities. It's quick and painless.

36 services34 patients

Ct scan of blood vessels of head with contrast 70496

A CT scan of the head's blood vessels with contrast is a diagnostic procedure. A special dye (contrast) is injected into your body to make the blood vessels visible on the scan. This helps identify issues like blockages or abnormalities in your head's blood vessels.

34 services34 patients

Ct scan of blood vessels of neck with contrast 70498

A CT scan of the neck's blood vessels with contrast is a diagnostic procedure. It uses X-rays and a special dye to create detailed images of your neck's blood vessels. This helps doctors detect issues such as blockages or abnormalities.

33 services33 patients

X-ray of knee, 3 views 73562

32 services26 patients

X-ray of knee, 1-2 views 73560

An X-ray of the knee with 1-2 views is a quick, painless test that produces images of the knee bones. It helps identify fractures, infections, or changes in the knee joint. During the procedure, you'll be asked to stay still while the X-ray machine captures the images.

31 services28 patients

X-ray of wrist, minimum of 3 views 73110

30 services28 patients

X-ray of ankle, minimum of 3 views 73610

An ankle X-ray is a quick, painless imaging test. It involves capturing at least three different images or 'views' of your ankle using small amounts of radiation. These images help identify any abnormalities or injuries, such as fractures or arthritis.

30 services29 patients

X-ray of foot, minimum of 3 views 73630

An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.

28 services27 patients

Mri scan of brain without contrast 70551

An MRI scan of the brain without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your brain. It helps in detecting abnormalities like tumors, stroke, inflammation, or infection.

27 services27 patients

Ct scan of blood vessels of abdomen and pelvis with contrast 74174

A CT scan of the abdomen and pelvis with contrast is a medical imaging procedure. A special dye, called contrast, is used to make blood vessels more visible. The scan produces detailed images of your abdomen and pelvis, helping doctors to diagnose conditions or plan treatments.

26 services26 patients

X-ray of lower and sacral spine, 2-3 views 72100

An X-ray of the lower and sacral spine involves capturing images of your lower back area, including the tailbone. This procedure helps in identifying problems like fractures, infections, or deformities. 2-3 different angle views provide a comprehensive picture.

24 services24 patients

Ct scan of lower spine without contrast 72131

A CT scan of the lower spine without contrast is a non-invasive imaging test. It uses X-rays to create detailed images of your lower back area, helping to detect conditions like fractures, infections, or tumors. It's painless and generally quick.

24 services24 patients

Ct scan of face without contrast 70486

A CT scan of the face without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your face, including bones, soft tissues, and blood vessels. It's often used to diagnose diseases, injuries, or abnormalities. No contrast dye is used in this procedure.

23 services23 patients

X-ray of elbow, minimum of 3 views 73080

An elbow X-ray with a minimum of 3 views is a non-invasive imaging test. It helps visualize the bones of the elbow from different angles. This aids in diagnosing conditions like fractures or arthritis. The procedure is quick, painless, and usually takes around 15 minutes.

23 services22 patients

X-ray of ankle, minimum of 3 views 73610

22 services16 patients

X-ray of hip, 2-3 views 73502

21 services21 patients

X-ray of lower leg, 2 views 73590

An X-ray of the lower leg, 2 views, is a quick, painless test that produces images of the bones in your lower leg. It helps to identify fractures, infections, or diseases. Two different angles are used to provide a comprehensive view of the leg's structure.

20 services18 patients

X-ray of lower and sacral spine, 2-3 views 72100

19 services19 patients

Ct scan of middle spine without contrast 72128

A CT scan of the middle spine without contrast is a non-invasive imaging test. It uses X-rays to create detailed pictures of your mid-spine area. This scan helps doctors identify issues like fractures, tumors, or infections. No dye is used in this procedure.

18 services18 patients

X-ray of pelvis, 1-2 views 72170

An X-ray of the pelvis, 1-2 views, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the lower part of your torso. These images help to detect any abnormalities or injuries in your hip bones and surrounding structures.

18 services18 patients

X-ray of thigh bone, minimum 2 views 73552

An X-ray of the thigh bone is a non-invasive imaging test. It involves passing a small amount of radiation through the thigh to produce images of the bone structure. At least two different angles are captured for a comprehensive view. This helps detect fractures, infections, or other abnormalities.

17 services17 patients

X-ray of foot, minimum of 3 views 73630

17 services14 patients

Limited ultrasound scan of abdomen 76705

A limited ultrasound scan of the abdomen is a non-invasive imaging test. It uses sound waves to produce images of the abdominal organs such as the liver, gallbladder, spleen, pancreas, and kidneys. This helps to identify any abnormalities or issues.

17 services17 patients

X-ray of hand, minimum of 3 views 73130

16 services12 patients

X-ray of hip, 1 view 73501

An X-ray of the hip, 1 view, is a quick, painless test where a small amount of radiation is used to produce images of the hip joint. This helps in diagnosing conditions like arthritis or fractures. You'll be positioned so that the X-ray machine can capture the best image of your hip.

16 services14 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

16 services16 patients

Aspiration of fluid from chest cavity using imaging guidance 32555

This procedure, known as a thoracentesis, involves removing fluid from the space between the lungs and chest wall, called the pleural space. It's performed under imaging guidance to ensure precision. It can help diagnose conditions or relieve symptoms like shortness of breath.

15 services13 patients

Ct scan of abdomen and pelvis before and after contrast 74178

A CT scan of your abdomen and pelvis with and without contrast helps visualize your internal organs better. Contrast is a special dye that improves the clarity of the images. It's taken orally or injected into your veins before the scan. The process is painless and quick.

15 services15 patients

Ultrasound study of one arm or leg veins with compression and maneuvers 93971

This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.

15 services15 patients

Mri scan of brain before and after contrast 70553

An MRI scan of the brain, both before and after contrast, helps visualize different brain structures. Initially, images are taken without a contrast agent. Then, a safe dye is injected which helps highlight certain areas, providing clearer, more detailed images.

14 services14 patients

Ct scan of pelvis without contrast 72192

A CT scan of the pelvis without contrast is a non-invasive imaging test. It uses X-rays to create detailed pictures of your lower abdomen area. It helps in detecting issues like injuries, inflammation, or abnormal growths. It doesn't involve any dye injection.

14 services14 patients

X-ray of knee, 4 or more views 73564

14 services14 patients

Review by radiologist of ct guidance for needle placement 77012

This process involves a radiologist examining CT scan images to accurately guide a needle's placement within the body. This technique is often used for biopsies or treatments, ensuring precision and safety.

14 services14 patients

Ct scan of soft tissue of neck with contrast 70491

A CT scan of the neck with contrast is a non-invasive imaging procedure. A special dye is administered to highlight the soft tissues in your neck, making them easier to see. This helps detect issues like infections, tumors, or other abnormalities.

12 services12 patients

X-ray of ribs on side of body, 2 views 71100

This procedure involves taking two separate X-ray images of your ribs from different angles. It's a non-invasive test that helps visualize the bones and surrounding areas to detect any abnormalities or injuries. You'll be positioned carefully to capture the best images.

12 services12 patients

Imaging for evaluation of swallowing function 74230

This process, known as a swallowing study, uses imaging technology to view how food and liquid move from your mouth to your stomach. It helps identify any issues you may have swallowing, which can be crucial for determining the best treatment plan.

12 services12 patients

Complete ultrasound scan behind abdominal cavity 76770

A complete ultrasound scan behind the abdominal cavity is a non-invasive imaging procedure. It uses sound waves to create pictures of the structures and organs located at the back of your abdomen. It helps in diagnosing health conditions and monitoring ongoing treatments.

12 services12 patients

X-ray of upper spine, 2-3 views 72040

An X-ray of the upper spine, with 2-3 views, is a painless procedure that employs a small amount of radiation to capture images of your neck and upper back. It assists in diagnosing conditions like arthritis, fractures, or spinal deformities.

11 services11 patients

X-ray of finger, minimum of 2 views 73140

An X-ray of the finger involves capturing images of your finger from at least two different angles. This non-invasive procedure helps in visualizing the bones and joints, aiding in the diagnosis of fractures, infections, or other abnormalities. Minimal discomfort may be experienced.

11 services11 patients

Ct scan of leg without contrast 73700

A CT scan of the leg is a non-invasive imaging test that uses X-rays to capture detailed images of your leg's bones, muscles, and blood vessels. It doesn't use contrast dye and doesn't cause any pain. It helps in diagnosing injuries or diseases.

11 services11 patients

Hospital Affiliations CMS Care Compare 3

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

Hudson Valley Hospital Center

Acute Care Hospitals · Cortlandt Manor, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330267

Location1980 Crompond RoadCortlandt Manor, NY 10567 · Westchester County

Emergency services Birthing friendly

Mercy Hospital Oklahoma City, Inc

Acute Care Hospitals · Oklahoma City, OK

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number370013

Location4300 West Memorial RoadOklahoma City, OK 73120 · Oklahoma County

Emergency services Birthing friendly

Mercy Hospital Ada

Acute Care Hospitals · Ada, OK

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number370020

Location430 North Monte VistaAda, OK 74820 · Pontotoc County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94401 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

$104.51 typical visit price

range $69.00 – $202.35

Typical copayment $26.12 (range $17.25 – $50.58)

Most-billed visit code 99203

Established Patient

$84.91 typical visit price

range $23.44 – $166.46

Typical copayment $21.22 (range $5.86 – $41.61)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

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

HARRIET BETH BOROFSKY M.D.

Radiology (Diagnostic Radiology)

100 S SAN MATEO DR
SAN MATEO, CA 94401

San Mateo County (650) 696-4140

SUTTER BAY HOSPITALS

Psychiatric Unit

100 S SAN MATEO DR
SAN MATEO, CA 94401

San Mateo County (650) 696-5400

CLAY HUGHES NAPPER M.D.

Radiology (Diagnostic Radiology)

100 S SAN MATEO DR
SAN MATEO, CA 94401

San Mateo County (650) 696-4515

QUAN MY TRAN DO

Family Medicine

100 S SAN MATEO DR
SAN MATEO, CA 94401

San Mateo County (650) 696-4515

VALERIE NOWAKOWSKI MD

Radiology (Radiation Oncology)

100 S SAN MATEO DR
SAN MATEO, CA 94401

San Mateo County (650) 336-8117

JEFFREY J. GUTTAS. MD, INC.

Allergy & Immunology

100 S SAN MATEO DR, STE 400
SAN MATEO, CA 94401

San Mateo County (650) 696-4101

DR. JEFFREY JOHN GUTTAS M.D.

Internal Medicine (Cardiovascular Disease)

100 S SAN MATEO DR, SUITE 400
SAN MATEO, CA 94401

San Mateo County (650) 696-4100

HAIDEE SUI DPT

Physical Therapist

100 S SAN MATEO DR
SAN MATEO, CA 94401

San Mateo County (650) 696-4315

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 Patrick Mulligan's NPI number?

The NPI number for Patrick Mulligan is 1710321138. It was assigned to this individual provider in the NPPES registry on April 29, 2013.

Where is Patrick Mulligan located?

Patrick Mulligan practices at 100 S San Mateo Dr, San Mateo, CA 94401. The listed phone number is (650) 696-4515.

What is Patrick Mulligan's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Patrick Mulligan enrolled in Medicare?

Yes. Patrick Mulligan is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Patrick Mulligan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Patrick Mulligan reassigns Medicare benefits to 15 organizations: San Mateo County (San Mateo, CA), Sutter Bay Medical Foundation (Palo Alto, CA), California Advanced Imaging Medical Associates Inc (San Francisco, CA), Sutter Valley Medical Foundation (Fairfield, CA), Regents Of The Univ Of Ca (Davis, CA) and 10 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Patrick Mulligan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Patrick Mulligan accept?

Health plans from Blue Cross and Blue Shield of Montana and Mountain Health CO-OP list Patrick Mulligan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Patrick Mulligan affiliated with any hospitals?

According to CMS data, Patrick Mulligan is affiliated with Hudson Valley Hospital Center, Mercy Hospital Oklahoma City, Inc and Mercy Hospital Ada.

When was this NPI record last updated?

The NPPES record for Patrick Mulligan was last updated on December 5, 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.