DR. CYNTHIA M. MULLEN M.D.
NPI 1013123140
Internal Medicine - Gastroenterology in Walnut Creek, CA

Q: What is Cynthia Mullen's NPI number?

The NPI number for Cynthia Mullen is 1013123140. It was assigned to this individual provider in the NPPES registry on May 15, 2007.

Q: What is Cynthia Mullen'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 Cynthia Mullen was last updated on March 3, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since May 15, 2007PECOS EnrolledAccepts Medicare Assignment

93.14/100

CMS Quality Rating

2637 SHADELANDS DR, WALNUT CREEK, CA 94598(925) 322-2372(925) 322-6720 Get Directions Write a Review

NPPES record last updated: March 3, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 3, 2025, Dec 6, 2019, Sep 10, 2019 (3 updates tracked since 2019).

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About Dr. Cynthia M. Mullen M.d. NPPES

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

DR. CYNTHIA M. MULLEN M.D. (NPI 1013123140) is an individual gastroenterology provider in Walnut Creek, California, licensed in California (A125601) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS and is a graduate of Tulane University School Of Medicine (2003).

NPPES Registry Identity

NPI1013123140

Entity TypeIndividualFemale

Primary Taxonomy207RG0100X

Provider Legal NameDR. CYNTHIA M. MULLENCredential: M.D.

Location Address2637 SHADELANDS DRWalnut Creek, CA 94598-2512

Mailing Address2637 Shadelands DrWalnut Creek, CA 94598-2512 · (925) 322-2372 · Fax (925) 322-6720

Phone(925) 322-2372

Fax(925) 322-6720

Sole ProprietorNo

Medical School CMSTulane University School Of MedicineGraduated 2003

Enumeration DateMay 15, 2007

Last NPPES UpdateMarch 3, 20253 updates tracked since enumeration

NPPES CertifiedMarch 3, 2025

✔ NPI 1013123140 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 · A125601

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.

2637 SHADELANDS DR, Walnut Creek, CA 94598

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Other Identifiers 1

OtherA125601Medical License

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. Cynthia M. Mullen 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 ID6305031584

PECOS Enrollment IDI20150414002728

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 12

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.

185 services160 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.

116 services102 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.

115 services112 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.

77 services71 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.

73 services70 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.

64 services64 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.

59 services55 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

38 services38 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.

23 services23 patients

Injection beneath lining of large bowel using a flexible endoscope 45381

This procedure involves a flexible tube, called an endoscope, being inserted into the large bowel. A small needle is then passed through the tube to inject medication under the bowel lining. This is typically done to treat inflammation or bleeding.

17 services17 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

17 services17 patients

New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202

This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.

16 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94598 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.

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.

93.14/100

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

Individually scored

Quality

86.29

Promoting Interoperability

100

Improvement Activities

Reported Quality Measures

Appropriate Use of DXA Scans in Women Under 65 Years Who Do Not Meet the Risk Factor Profile for Osteoporotic Fracture

Lower rates are better for this measure.

4%92 patients

Breast Cancer Screening

90%404 patients4/55-star benchmark: 93%

Cervical Cancer Screening

68%451 patients3/55-star benchmark: 98%

Colorectal Cancer Screening

89%696 patients5/55-star benchmark: 88%

Controlling High Blood Pressure

76%308 patients4/55-star benchmark: 91%

Diabetes: Eye Exam

32%63 patients2/55-star benchmark: 100%

Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)

Lower rates are better for this measure.

16%63 patients4/55-star benchmark: 91%

Documentation of Current Medications in the Medical Record

4%1,477 patients1/55-star benchmark: 100%

e-Prescribing

99%470 patients4/55-star benchmark: 100%

Falls: Screening for Future Fall Risk

56%457 patients3/55-star benchmark: 100%

HIV Screening

34%641 patients3/55-star benchmark: 60%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

53%1,038 patients3/55-star benchmark: 98%

Preventive Care and Screening: Screening for Depression and Follow-Up Plan

43%722 patients2/55-star benchmark: 97%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients screened: 88% · 304 patients

88%304 patients

Provide Patients Electronic Access to Their Health Information

100%374 patients5/55-star benchmark: 100%

Statin Therapy for the Prevention and Treatment of Cardiovascular Disease

77%331 patients4/55-star benchmark: 91%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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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.

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