GUINEA SINGH FAN M.D.
NPI 1356504716
Internal Medicine - Gastroenterology in Sacramento, CA

Q: What is Guinea Fan's NPI number?

The NPI number for Guinea Fan is 1356504716. It was assigned to this individual provider in the NPPES registry on July 7, 2008. The provider is also known as Guinea Singh M.D..

Q: What is Guinea Fan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Guinea Fan was last updated on February 26, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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 July 07, 2008PECOS EnrolledAccepts Medicare Assignment

4150 V ST STE 3500, SACRAMENTO, CA 95817(916) 734-7224 Get Directions Write a Review

NPPES record last updated: February 26, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 26, 2020, Mar 17, 2018, Aug 1, 2017 (3 updates tracked since 2017).

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About Guinea Singh Fan M.d. NPPES

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

GUINEA SINGH FAN M.D. (NPI 1356504716) is an individual gastroenterology provider in Sacramento, California, licensed in California (A106539) and active in the NPI registry since July 2008. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2004).

NPPES Registry Identity

NPI1356504716

Entity TypeIndividualFemale

Primary Taxonomy207RG0100X

Provider Legal NameGUINEA SINGH FANCredential: M.D.

Location Address4150 V ST STE 3500Sacramento, CA 95817-1460

Mailing Address10470 Old Placerville Rd Ste 100Sacramento, CA 95827-2539 · (800) 470-0071

Phone(916) 734-7224

Sole ProprietorNo

Medical School CMSOtherGraduated 2004

Enumeration DateJuly 7, 2008

Last NPPES UpdateFebruary 26, 20203 updates tracked since enumeration

✔ NPI 1356504716 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in CA · A106539

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

4150 V ST STE 3500, Sacramento, CA 95817

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Other Names 1

Former Name (1)Guinea Singh M.d.

Secondary Practice Locations 2

Location 16600 Bruceville Rd, Dept of Gastroenterology, Medical Office Building 2Sacramento, CA 95823-4671 · Phone (916) 688-2028 · Fax (916) 688-2790

Location 211795 Education St Ste 213Auburn, CA 95602-2469 · Phone (530) 886-6800 · Fax (530) 886-6801

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Guinea Singh Fan 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 ID3375784457

PECOS Enrollment IDI20130801000465

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 Guinea Fan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Regents Of The Univ Of Ca

0.3 mi

Pediatric Rheumatology

2521 STOCKTON BLVD
Sacramento, CA 95817

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

NPI 1457344475 (916) 734-3179

Regents Of The University Of Ca

0.3 mi

Multi-Specialty

2221 STOCKTON BLVD
Sacramento, CA 95817

Reassigned Medicare billing, California enrollment
Medicare enrollment name: Regents Of The University Of California
918 clinicians in this Medicare group

NPI 1407836059 (916) 734-3556

Permanente Medical Group Inc

38 mi

Internal Medicine

7373 WEST LANE
Stockton, CA 95210

Reassigned Medicare billing, California enrollment
20,078 clinicians in this Medicare group

NPI 1548343510 (209) 476-2000

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 13

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, midazolam hydrochloride, per 1 mg J2250

Midazolam hydrochloride is a medication injected to help you relax or sleep before surgery or certain medical procedures. It works by calming the brain and nerves. It's given in small doses, measured in milligrams (mg).

415 services96 patients

Injection, fentanyl citrate, 0.1 mg J3010

Fentanyl citrate is a potent pain medication administered via injection. The 0.1 mg dosage is used to manage severe pain conditions. It works by blocking pain signals to the brain. It's crucial to follow the dosage instructions to prevent potential side effects.

131 services95 patients

Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes 99153

This service involves a physician administering medication to lower your consciousness during a procedure. It's done for your comfort and safety. The drug's effects last about 15 minutes, so additional doses may be given as needed.

114 services75 patients

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500

Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.

96 services94 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

46 services46 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

39 services39 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

37 services37 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

37 services37 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

30 services30 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

30 services27 patients

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.

24 services24 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.

19 services19 patients

Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121

Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95817 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

$137.20 typical visit price

range $60.44 – $180.85

Typical copayment $34.30 (range $15.11 – $45.21)

Most-billed visit code 99204

Established Patient

$105.95 typical visit price

range $19.88 – $148.15

Typical copayment $26.48 (range $4.97 – $37.03)

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.

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.

ALEXANDER THOMAS MILLER MD

Internal Medicine (Gastroenterology)