What is Richard Mason's NPI number?

Richard Mason's National Provider Identifier (NPI) is 1003809625, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Richard Mason's specialty?

Richard Mason is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).

Where is Richard Mason located?

Richard Mason's practice location on file with NPPES is 1 E Countyline Rd, Sandwich, IL 60548-2178.

What is Richard Mason's phone number?

The practice phone number listed in the NPPES registry for Richard Mason is (815) 786-2722.

Does Richard Mason accept Medicare?

Richard Mason is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Richard Mason's NPI active?

Yes — Richard Mason's NPI (1003809625) is active in the NPPES registry as of the last update on 2021-01-07.

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Richard Mason, DO

NPI 1003809625 · Surgery Physician · Sandwich, IL

Richard Mason, DO is a Surgery Physician provider in Sandwich, IL (NPI 1003809625).

Provider details

NPI number: 1003809625
Entity type: Individual
Primary specialty: Surgery PhysicianAllopathic & Osteopathic Physicians
Credential: DO
Sex: Male
Sole proprietor: No
License: 03682889 (IL)

Practice location

1 E Countyline Rd

Sandwich, IL 60548-2178

Phone: (815) 786-2722

Fax: (815) 786-6840

Street-level locationGet directions

More IL providers

Mailing address

10 Martin Ave Ste 225

Naperville, IL 60540-6590

Specialties & taxonomies

Surgery PhysicianPrimary208600000XLicense 03682889 (IL)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(73/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
21 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
1 documented practice location
Medicare service volume (vs. specialty peers)28% of score
169 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204	52	$175
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	49	$134
Biopsy of Large Bowel Using a Flexible Endoscope45380	25	$165
Diagnostic Exam of Large Bowel Using a Flexible Endoscope45378	19	$180
Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385	13	$269
New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.

Drug	Part D claims (2024)	Beneficiaries
Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte	93	87

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Enumerated: 2005-08-30
Last updated: 2021-01-07
Certified: 2021-01-07

Frequently asked questions

What is Richard Mason's NPI number?: Richard Mason's National Provider Identifier (NPI) is 1003809625, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Richard Mason's specialty?: Richard Mason is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
Where is Richard Mason located?: Richard Mason's practice location on file with NPPES is 1 E Countyline Rd, Sandwich, IL 60548-2178.
What is Richard Mason's phone number?: The practice phone number listed in the NPPES registry for Richard Mason is (815) 786-2722.
Does Richard Mason accept Medicare?: Richard Mason is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Richard Mason's NPI active?: Yes — Richard Mason's NPI (1003809625) is active in the NPPES registry as of the last update on 2021-01-07.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204	52	$175
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	49	$134
Biopsy of Large Bowel Using a Flexible Endoscope45380	25	$165
Diagnostic Exam of Large Bowel Using a Flexible Endoscope45378	19	$180
Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385	13	$269
New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.

Drug	Part D claims (2024)	Beneficiaries
Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte	93	87

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)