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DR. JOHN EDWARD MASON M.D.
NPI 1275528580
Surgery in Chesterfield, MO

Active since September 13, 2005PECOS EnrolledAccepts Medicare Assignment
75/100
CMS Quality Rating
226 S WOODS MILL RD, SUITE 49 W, CHESTERFIELD, MO 63017(314) 434-1211(314) 434-4419 Get Directions Write a Review

NPPES record last updated: February 26, 2018. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. John Edward Mason M.d. NPPES

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

DR. JOHN EDWARD MASON M.D. (NPI 1275528580) is an individual surgery provider in Chesterfield, Missouri, licensed in Missouri (104004) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS, is affiliated with St Lukes Hospital, and is a graduate of Washington University School Of Medicine (1993).

NPPES Registry Identity

NPI1275528580
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameDR. JOHN EDWARD MASONCredential: M.D.
Location Address226 S WOODS MILL RD, SUITE 49 WChesterfield, MO 63017-3662
Mailing Address226 S Woods Mill Rd, Suite 49 WChesterfield, MO 63017-3662 · (314) 434-1211 · Fax (314) 434-4419
Phone(314) 434-1211
Fax(314) 434-4419
Sole ProprietorNo
Medical School CMSWashington University School Of MedicineGraduated 1993
Enumeration DateSeptember 13, 2005
Last NPPES UpdateFebruary 26, 2018
✔ NPI 1275528580 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in MO · 104004
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
226 S WOODS MILL RD, Chesterfield, MO 63017
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Other Identifiers 1

Medicaid205802101MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Sunflower Health Plan and more.Insurance ›

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. John Edward Mason 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 ID9537291273
PECOS Enrollment IDI20100716000103
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 8

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.

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.
121 services121 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
61 services40 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
33 services31 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
27 services16 patients
Removal of gallbladder using an endoscope 47562
This procedure, known as endoscopic gallbladder removal, involves a surgeon using a special tool called an endoscope to remove your gallbladder through small incisions. It's typically done to treat gallstones and related complications. It's a less invasive method, often leading to quicker recovery.
25 services25 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.
23 services16 patients

Hospital Affiliations CMS Care Compare

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

St Lukes Hospital

Acute Care Hospitals · Chesterfield, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260179
Location232 S Woods Mill RdChesterfield, MO 63017 · St. Louis County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63017 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
$86.32 typical visit price
range $55.65 – $169.38
Typical copayment $21.58 (range $13.91 – $42.34)
Most-billed visit code 99203
Established Patient
$69.50 typical visit price
range $17.76 – $137.92
Typical copayment $17.37 (range $4.44 – $34.48)
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.

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.

75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
100%291 patients5/55-star benchmark: 100%
Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
100%1,522 patients5/55-star benchmark: 100%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
79%43 patients4/55-star benchmark: 100%
Falls: Risk Assessment
Percentage of patients aged 65 years and older with a history of falls that had a risk assessment for falls completed within 12 months
100%42 patients5/55-star benchmark: 100%
Health Information Exchange
The MIPS eligible clinician that transitions or refers their patient to another setting of care or health care clinician (1) uses CEHRT to create a summary of care record; and (2) electronically transmits such summary to a receiving health care clinician for…
100%20 patients5/55-star benchmark: 98%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
100%156 patients5/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
93%226 patients4/55-star benchmark: 100%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
99%758 patients4/55-star benchmark: 100%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
88%226 patients4/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
72%226 patients4/55-star benchmark: 79%
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.

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.

MORLEY & MAXSON, MDS, PC
Obstetrics & Gynecology
226 S WOODS MILL RD, 55W
CHESTERFIELD, MO 63017
St. Louis County (314) 469-0001
DR. KATHERINE L KOMENDOWSKI MD
Pediatrics
226 S WOODS MILL RD, STE 36W
CHESTERFIELD, MO 63017
St. Louis County (314) 453-9666
JOHN C. PERLMUTTER, INC.
Ophthalmology
226 S WOODS MILL RD, SUITE 51 WEST
CHESTERFIELD, MO 63017
St. Louis County (314) 434-0202
DAVID H CORT M.D.
Internal Medicine (Gastroenterology)
226 S WOODS MILL RD, SUITE 52 WEST
CHESTERFIELD, MO 63017
St. Louis County (314) 434-2399
WUCA - WOODSMILL LLC
Clinic/Center (Multi-Specialty)
226 S WOODS MILL RD, SUITE 36W
CHESTERFIELD, MO 63017
St. Louis County (314) 453-9666
DR. CAROLINE ANNE MORGAN M.D.
Obstetrics & Gynecology
226 S WOODS MILL RD, SUITE 68 WEST
CHESTERFIELD, MO 63017
St. Louis County (314) 576-0930
DR. CHRISTOPHER S. CRONIN M.D.
Surgery
226 S WOODS MILL RD, SUITE 49 W
CHESTERFIELD, MO 63017
St. Louis County (314) 434-1211
DR. STEPHEN C YIM MD
Obstetrics & Gynecology (Gynecology)
226 S WOODS MILL RD, SUITE 55 WEST
CHESTERFIELD, MO 63017
St. Louis County (314) 469-4440

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 John Mason's NPI number?

The NPI number for John Mason is 1275528580. It was assigned to this individual provider in the NPPES registry on September 13, 2005.

Where is John Mason located?

John Mason practices at 226 S Woods Mill Rd Suite 49 W, Chesterfield, MO 63017. The listed phone number is (314) 434-1211.

What is John Mason's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is John Mason enrolled in Medicare?

Yes. John Mason 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.

What insurance does John Mason accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health and Ambetter from Sunflower Health Plan and 4 other insurers list John Mason 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 John Mason affiliated with any hospitals?

According to CMS data, John Mason is affiliated with St Lukes Hospital.

When was this NPI record last updated?

The NPPES record for John Mason was last updated on February 26, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.