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CALVIN OGDEN MCGOWAN M.D.
NPI 1710205703
Anesthesiology in San Angelo, TX

Active since May 14, 2010PECOS EnrolledAccepts Medicare Assignment
95.75/100
CMS Quality Rating
120 E HARRIS AVE, SAN ANGELO, TX 76903(325) 658-1511(325) 481-2166 Get Directions Write a Review

NPPES record last updated: April 10, 2015. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Calvin Ogden Mcgowan M.d. NPPES

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

CALVIN OGDEN MCGOWAN M.D. (NPI 1710205703) is an individual anesthesiology provider in San Angelo, Texas, licensed in Texas (P8388) and active in the NPI registry since May 2010. He is enrolled in Medicare PECOS, is affiliated with Shannon Medical Center, and is a graduate of University Of Texas Medical School At Houston (2010).

NPPES Registry Identity

NPI1710205703
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameCALVIN OGDEN MCGOWANCredential: M.D.
Location Address120 E HARRIS AVESan Angelo, TX 76903-5904
Mailing AddressPo Box 22000San Angelo, TX 76902-7200 · (325) 658-1511 · Fax (325) 481-2166
Phone(325) 658-1511
Fax(325) 481-2166
Sole ProprietorNo
Medical School CMSUniversity Of Texas Medical School At HoustonGraduated 2010
Enumeration DateMay 14, 2010
Last NPPES UpdateApril 10, 2015
✔ NPI 1710205703 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in TX · P8388
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
120 E HARRIS AVE, San Angelo, TX 76903
Open in Google Maps ↗

Other Identifiers 3

Other8EE876TX · Bcbs
Medicaid340228801TX
Medicare PIN374912YKRYTX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.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

Calvin Ogden Mcgowan 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 ID3779720511
PECOS Enrollment IDI20141114000864
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 Reassignment

Medicare enrollment records show Calvin Mcgowan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Shannon Clinic
0.4 mi
Family Medicine
120 E BEAUREGARD AVE
San Angelo, TX 76903
  • Reassigned Medicare billing, Texas enrollment
  • 671 clinicians in this Medicare group
NPI 1770587149 (325) 658-1511

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.

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
18 services18 patients
Insertion of artery tube for blood sampling or infusion through skin 36620
This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.
16 services16 patients
Anesthesia for other procedure on upper abdomen 00790
Anesthesia for an upper abdomen procedure involves using medications to help you feel no pain during the operation. It can be general, where you're unconscious, or regional, where just the abdomen area is numbed. It ensures comfort and stillness, aiding a successful procedure.
12 services12 patients
Anesthesia for other procedure on large bowel using an endoscope 00811
Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.
12 services12 patients
Insertion of non-tunneled central venous tube for infusion (5 years or older) 36556
This procedure involves placing a thin tube into a large vein, usually in the neck or chest, to administer medication or fluids. It's done under local anesthesia to minimize discomfort. It's a standard, safe procedure for individuals aged 5 and above.
12 services12 patients

Hospital Affiliations CMS Care Compare

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

Shannon Medical Center

Acute Care Hospitals · San Angelo, TX
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450571
Location120 E Harris Ave.San Angelo, TX 76903 · Tom Green County
Emergency services Birthing friendly

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.

95.75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability95
Improvement Activities40

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.

DR. STEPHANIE WALLS MCCANN PHARM. D.
Pharmacist
120 E HARRIS AVE
SAN ANGELO, TX 76903
Tom Green County (325) 657-5214
DR. YASEEN SALEH MD
Emergency Medicine
120 E HARRIS AVE
SAN ANGELO, TX 76903
Tom Green County (325) 747-6741
SHANNON MEDICAL CENTER
Psychiatric Hospital
120 E HARRIS AVE
SAN ANGELO, TX 76903
Tom Green County (325) 657-5031
DR. LANCE ELIOT HAFTER D.O.
Emergency Medicine
120 E HARRIS AVE
SAN ANGELO, TX 76903
Tom Green County (325) 747-6741
JAVIER LEONCIO BAEZ PRESSER MD
Internal Medicine
120 E HARRIS AVE
SAN ANGELO, TX 76903
Tom Green County (325) 481-6410
DR. EKEMINI BENEDICT USORO DO
Hospitalist
120 E HARRIS AVE
SAN ANGELO, TX 76903
Tom Green County (325) 747-6741
CHIAMAKA SYLVIA DIALA MD
Internal Medicine
120 E HARRIS AVE
SAN ANGELO, TX 76903
Tom Green County (325) 747-6741
DR. SHELLY DENISE WEISE EDD
Physical Therapist
120 E HARRIS AVE
SAN ANGELO, TX 76903
Tom Green County (325) 653-6741

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 Calvin Mcgowan's NPI number?

The NPI number for Calvin Mcgowan is 1710205703. It was assigned to this individual provider in the NPPES registry on May 14, 2010.

Where is Calvin Mcgowan located?

Calvin Mcgowan practices at 120 E Harris Ave, San Angelo, TX 76903. The listed phone number is (325) 658-1511.

What is Calvin Mcgowan's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Calvin Mcgowan enrolled in Medicare?

Yes. Calvin Mcgowan 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.

Which organization bills Medicare for Calvin Mcgowan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Calvin Mcgowan reassigns Medicare benefits to Shannon Clinic (San Angelo, TX). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Calvin Mcgowan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Calvin Mcgowan accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 2 other insurers list Calvin Mcgowan 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 Calvin Mcgowan affiliated with any hospitals?

According to CMS data, Calvin Mcgowan is affiliated with Shannon Medical Center.

When was this NPI record last updated?

The NPPES record for Calvin Mcgowan was last updated on April 10, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.