ANNA SKAY
NPI 1447522719
Internal Medicine - Gastroenterology in Valencia, CA

Q: What is Anna Skay's NPI number?

The NPI number for Anna Skay is 1447522719. It was assigned to this individual provider in the NPPES registry on February 2, 2012.

Q: What is Anna Skay'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 Anna Skay was last updated on September 10, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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 February 02, 2012PECOS EnrolledAccepts Medicare Assignment

86.1/100

CMS Quality Rating

25775 MCBEAN PKWY STE 214, VALENCIA, CA 91355(661) 255-2420(661) 259-0552 Get Directions Write a Review

NPPES record last updated: September 10, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 10, 2019, Mar 17, 2018, Jul 27, 2017 (3 updates tracked since 2017).

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About Anna Skay NPPES

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

ANNA SKAY (NPI 1447522719) is an individual gastroenterology provider in Valencia, California, licensed in California (A125749) and active in the NPI registry since February 2012. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of Southern California Keck School Of Medicine (2011).

NPPES Registry Identity

NPI1447522719

Entity TypeIndividualFemale

Primary Taxonomy207RG0100X

Provider Legal NameANNA SKAY

Location Address25775 MCBEAN PKWY STE 214Valencia, CA 91355

Mailing Address5767 W Century Blvd Ste 400Los Angeles, CA 90045-5631

Phone(661) 255-2420

Fax(661) 259-0552

Sole ProprietorYes

Medical School CMSUniversity Of Southern California Keck School Of MedicineGraduated 2011

Enumeration DateFebruary 2, 2012

Last NPPES UpdateSeptember 10, 20193 updates tracked since enumeration

✔ NPI 1447522719 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in CA · A125749

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.

Also ListedInternal MedicineTaxonomy 207R00000X · License A125749 (CA)

25775 MCBEAN PKWY STE 214, Valencia, CA 91355

Open in Google Maps ↗

Secondary Practice Locations 2

Location 1200 Medical Plaza Suite 365 530 420 250 120 214Los Angeles, CA 90095-1029 · Phone (310) 794-1276

Location 219950 Rinaldi St Ste 300Porter Ranch, CA 91326-4141 · Phone (818) 271-2400 · Fax (818) 271-2401

Other Identifiers 1

Other113880CA · Sid# 113880

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

Anna Skay 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 ID7911277850

PECOS Enrollment IDI20170725003156

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 Anna Skay reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The Regents Of The University Of California

2.3 mi

Ambulatory Surgical

27235 TOURNEY RD STE 1100
Valencia, CA 91355

Reassigned Medicare billing, California enrollment
Also billed through NPI 1215381843 (California), NPI 1366041469 (California), NPI 1205566544 (California), NPI 1235107566 (California)
43 clinicians in this Medicare group

NPI 1689200305 (000) 000-0000

County Of Los Angeles Auditor Controller

7.9 mi

General Acute Care Hospital

14445 OLIVE VIEW DR
Sylmar, CA 91342

Reassigned Medicare billing, California enrollment
Medicare enrollment name: County Of Los Angeles
1,939 clinicians in this Medicare group

NPI 1134159320 (818) 364-3031

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 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.

228 services149 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.

112 services101 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.

97 services97 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.

93 services93 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.

90 services67 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.

69 services69 patients

Online digital evaluation and management service for an established patient for up to 7 days, total time 11-20 minutes 99422

This is a digital health service for existing patients. Over a week, your healthcare provider will assess and manage your health concerns online. The total time spent communicating will be between 11-20 minutes. This service offers convenience and continuous care.

34 services28 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

31 services15 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

25 services24 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.

22 services22 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

20 services13 patients

Colorectal cancer screening; colonoscopy on individual at high risk G0105

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

15 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91355 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

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

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.

86.1/100

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

Scored as part of a group practice

Quality

82.93

Promoting Interoperability

100

Improvement Activities

Cost

66.73

Other Providers at the Same Location NPPES 6

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

CHANTHEL KOKOY-MONDRAGON M.D.

Internal Medicine (Gastroenterology)