STEPHEN CALVERT M.D.
NPI 1902875420
Internal Medicine in Tulsa, OK

Q: What is Stephen Calvert's NPI number?

The NPI number for Stephen Calvert is 1902875420. It was assigned to this individual provider in the NPPES registry on March 16, 2006.

Q: What is Stephen Calvert's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Stephen Calvert was last updated on August 26, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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 March 16, 2006PECOS EnrolledAccepts Medicare Assignment

8115 S MEMORIAL DR, TULSA, OK 74133(918) 254-6315(918) 403-6315 Get Directions Write a Review

NPPES record last updated: August 26, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Stephen Calvert M.d. NPPES

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

STEPHEN CALVERT M.D. (NPI 1902875420) is an individual internal medicine provider in Tulsa, Oklahoma, licensed in Oklahoma (22446) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Ascension St John Medical Center, and is a graduate of University Of Oklahoma College Of Medicine (2001).

NPPES Registry Identity

NPI1902875420

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameSTEPHEN CALVERTCredential: M.D.

Location Address8115 S MEMORIAL DRTulsa, OK 74133-4331

Mailing Address8115 S Memorial DrTulsa, OK 74133-4331 · (918) 254-6315 · Fax (918) 403-6315

Phone(918) 254-6315

Fax(918) 403-6315

Sole ProprietorNo

Medical School CMSUniversity Of Oklahoma College Of MedicineGraduated 2001

Enumeration DateMarch 16, 2006

Last NPPES UpdateAugust 26, 2024

NPPES CertifiedAugust 26, 2024

✔ NPI 1902875420 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in OK · 22446

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

8115 S MEMORIAL DR, Tulsa, OK 74133

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Other Identifiers 1

Medicaid200002130AOK

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Mending Health.Insurance ›

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

Stephen Calvert 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 ID9234175969

PECOS Enrollment IDI20050830000817

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 Stephen Calvert reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Board Of Regents Of The University Of Oklahoma Ou Physicians Tulsa

4.4 mi

Multi-Specialty

4502 E 41ST ST
Tulsa, OK 74135

Reassigned Medicare billing, Oklahoma enrollment
124 clinicians in this Medicare group

NPI 1154385730 (918) 660-3632

Omni Medical Group Inc

7.6 mi

Internal Medicine

1923 S UTICA AVE, DAVIS TOWER 200
Tulsa, OK 74104

Reassigned Medicare billing, Oklahoma enrollment
181 clinicians in this Medicare group

NPI 1174578249 (918) 744-2345

St. John Physicians, Inc.

7.6 mi

Internal Medicine

1923 S UTICA AVE, DAVIS TOWER 200
Tulsa, OK 74104

Reassigned Medicare billing, Oklahoma enrollment
820 clinicians in this Medicare group

NPI 1336194406 (918) 744-2345

Tulsa Hospital Medicine Physicians Group, LLC

8.4 mi

Internal Medicine

1120 S UTICA AVE
Tulsa, OK 74104

Reassigned Medicare billing, Oklahoma enrollment
210 clinicians in this Medicare group

NPI 1144982711 (918) 579-1000

Hospitalist Medicine Physicians Of Texas, PLLC

418 mi

Internal Medicine

18951 N MEMORIAL DR
Humble, TX 77338

Reassigned Medicare billing, Oklahoma enrollment
284 clinicians in this Medicare group

NPI 1629307095 (281) 540-7700

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 5

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.

77 services44 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.

45 services27 patients

Hemoglobin a1c level 83036

Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.

24 services21 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.

22 services22 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.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Ascension St John Medical Center

Acute Care Hospitals · Tulsa, OK

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number370114

Location1923 South Utica AvenueTulsa, OK 74104 · Tulsa County

Emergency services Birthing friendly

Ascension St John Broken Arrow

Acute Care Hospitals · Broken Arrow, OK

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number370235

Location1000 West Boise CircleBroken Arrow, OK 74012 · Tulsa County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 74133 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

$123.06 typical visit price

range $53.00 – $162.61

Typical copayment $30.76 (range $13.25 – $40.65)

Most-billed visit code 99204

Established Patient

$94.27 typical visit price

range $16.68 – $132.40

Typical copayment $23.56 (range $4.17 – $33.10)

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.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

3 suppliers36 claims36 services$13.20 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

1 supplier18 claims18 services$2.97 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

3 suppliers36 claims36 services$63.68 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 9

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

PATRICIA DUFFY-FEINS MA, MSW

Counselor