DR. ALEXANDER D COLQUHOUN MD
NPI 1598875858
Anesthesiology in Richmond, VA

Q: What is Alexander Colquhoun's NPI number?

The NPI number for Alexander Colquhoun is 1598875858. It was assigned to this individual provider in the NPPES registry on August 30, 2006.

Q: What is Alexander Colquhoun's specialty?

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

Active since August 30, 2006PECOS EnrolledAccepts Medicare Assignment

1250 E MARSHALL ST, ANESTHESIOLOGY, RICHMOND, VA 23298(804) 628-6975(804) 628-6997 Get Directions Write a Review

NPPES record last updated: July 9, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Dr. Alexander D Colquhoun Md NPPES

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

DR. ALEXANDER D COLQUHOUN MD (NPI 1598875858) is an individual anesthesiology provider in Richmond, Virginia, licensed in Virginia (0109541044) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Cjw Medical Center, and is a graduate of Other (1978).

NPPES Registry Identity

NPI1598875858

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameDR. ALEXANDER D COLQUHOUNCredential: MD

Location Address1250 E MARSHALL ST, ANESTHESIOLOGYRichmond, VA 23298-5051

Mailing AddressPo Box 91734Richmond, VA 23291-1734 · (804) 358-6100 · Fax (804) 342-7619

Phone(804) 628-6975

Fax(804) 628-6997

Sole ProprietorNo

Medical School CMSOtherGraduated 1978

Enumeration DateAugust 30, 2006

Last NPPES UpdateJuly 9, 2007

✔ NPI 1598875858 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in VA · 0109541044

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.

1250 E MARSHALL ST, Richmond, VA 23298

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Other Identifiers 2

Medicare UPINI02991VA

Medicare ID-Type Unspecified003261M42VA · C03042

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health, Oscar Insurance Company.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

Dr. Alexander D Colquhoun Md 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 ID1456242312

PECOS Enrollment IDI20040322001152

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

Commonwealth Anesthesia Associates, P.C.

9.5 mi

Anesthesiology

10800 MIDLOTHIAN TPKE, SUITE 265
Richmond, VA 23235

Reassigned Medicare billing, Virginia enrollment
Medicare enrollment name: Commonwealth Anesthesia Associates PC
98 clinicians in this Medicare group

NPI 1548275308 (804) 594-2622

American Anesthesiology Of Virginia PC

92 mi

Anesthesiology

3300 GALLOWS RD
Falls Church, VA 22042

Reassigned Medicare billing, Virginia enrollment
1,217 clinicians in this Medicare group

NPI 1417994872 (037) 764-0017

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 4

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 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.

85 services85 patients

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.

52 services52 patients

Anesthesia for procedure on small and large bowel using an endoscope 00813

Anesthesia for an endoscopic procedure on the small and large bowel ensures comfort and relaxation during the procedure. It involves administering medicine to help you sleep or feel drowsy. This allows the doctor to examine your bowels without causing you discomfort or pain.

41 services41 patients

Anesthesia for exam of colon using an endoscope 00812

Anesthesia for a colon examination with an endoscope is a method used to ensure comfort during the procedure. It involves administering medication to help you relax or sleep, thus reducing discomfort as the endoscope, a thin, flexible tube, is navigated through your colon.

35 services35 patients

Hospital Affiliations CMS Care Compare 2

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

Cjw Medical Center

Acute Care Hospitals · Richmond, VA

4/5 CMS rating

OwnershipProprietary

CMS Certification Number490112

Location7101 Jahnke RoadRichmond, VA 23235 · Chesterfield County

Emergency services

Bon Secours St Francis Medical Center

Acute Care Hospitals · Midlothian, VA

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number490136

Location13710 St Francis BoulevardMidlothian, VA 23114 · Chesterfield County

Emergency services Birthing friendly

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.

NEVIN YILMAZ MD

Student in an Organized Health Care Education/Training Program

1250 E MARSHALL ST
RICHMOND, VA 23298

Richmond City (804) 828-9783

MS. RENEE D SEAMAN NP

Nurse Practitioner (Family)

1250 E MARSHALL ST, GENERAL MEDICINE
RICHMOND, VA 23298

Richmond City (804) 828-3144

DR. AIMEE COLLINS MD

Internal Medicine

1250 E MARSHALL ST, INTERNAL MEDICINE
RICHMOND, VA 23298

Richmond City (804) 828-3144

MRS. MARY ELIZABETH O'BOYLE WILLIS FNP

Nurse Practitioner (Family)

1250 E MARSHALL ST, DEPARTMENT OF PEDIATRICS
RICHMOND, VA 23298

Richmond City (804) 628-0189

DR. AMY SAMANTHA MAY PAUL M.D.

Internal Medicine (Geriatric Medicine)

1250 E MARSHALL ST, DEPT. OF INTERNAL MEDICINE/GERIATRIC MEDICINE
RICHMOND, VA 23298

Richmond City (804) 254-3500

MRS. ERICA STOREY CLINE PA-C

Physician Assistant

1250 E MARSHALL ST, EMERGENCY MEDICINE
RICHMOND, VA 23298

Richmond City (804) 828-0996

CYNTHIA CHENAULT AGACNP

Nurse Practitioner (Acute Care)

1250 E MARSHALL ST
RICHMOND, VA 23298

Richmond City (804) 628-3646

DR. TAYLOR LATIA ROACH MD

Student in an Organized Health Care Education/Training Program

1250 E MARSHALL ST
RICHMOND, VA 23298

Richmond City (804) 628-7497

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 Alexander Colquhoun's NPI number?

The NPI number for Alexander Colquhoun is 1598875858. It was assigned to this individual provider in the NPPES registry on August 30, 2006.

Where is Alexander Colquhoun located?

Alexander Colquhoun practices at 1250 E Marshall St Anesthesiology, Richmond, VA 23298. The listed phone number is (804) 628-6975.

What is Alexander Colquhoun's specialty?

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

Is Alexander Colquhoun enrolled in Medicare?

Yes. Alexander Colquhoun 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 organizations bill Medicare for Alexander Colquhoun's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Colquhoun reassigns Medicare benefits to 2 organizations: Commonwealth Anesthesia Associates, P.C. (Richmond, VA) and American Anesthesiology Of Virginia PC (Falls Church, VA). Each 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 Alexander Colquhoun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alexander Colquhoun accept?

Health plans from Oscar Health and Oscar Insurance Company list Alexander Colquhoun 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 Alexander Colquhoun affiliated with any hospitals?

According to CMS data, Alexander Colquhoun is affiliated with Cjw Medical Center and Bon Secours St Francis Medical Center.

When was this NPI record last updated?

The NPPES record for Alexander Colquhoun was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.