ANDREW HAVENS RAMSEY SINGLETON
NPI 1639312663
Surgery - Surgical Critical Care in Pasadena, CA

Q: What is Andrew Singleton's NPI number?

The NPI number for Andrew Singleton is 1639312663. It was assigned to this individual provider in the NPPES registry on April 6, 2009.

Q: What is Andrew Singleton's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Surgical Critical Care, with taxonomy code 2086S0102X.

Q: When was this NPI record last updated?

The NPPES record for Andrew Singleton was last updated on June 21, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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 April 06, 2009PECOS EnrolledAccepts Medicare Assignment

1044 S FAIR OAKS AVE STE 101, PASADENA, CA 91105(626) 449-4859(626) 403-0321 Get Directions Write a Review

NPPES record last updated: June 21, 2020. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Andrew Havens Ramsey Singleton NPPES

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

ANDREW HAVENS RAMSEY SINGLETON (NPI 1639312663) is an individual surgical critical care provider in Pasadena, California, licensed in California (A135966) and active in the NPI registry since April 2009. He is enrolled in Medicare PECOS and is a graduate of Jefferson Medical College Of Thomas Jefferson University (2009).

NPPES Registry Identity

NPI1639312663

Entity TypeIndividualMale

Primary Taxonomy2086S0102X

Provider Legal NameANDREW HAVENS RAMSEY SINGLETON

Location Address1044 S FAIR OAKS AVE STE 101Pasadena, CA 91105-2622

Mailing AddressPo Box 31309Los Angeles, CA 90031-0309 · (323) 409-7761

Phone(626) 449-4859

Fax(626) 403-0321

Sole ProprietorNo

Medical School CMSJefferson Medical College Of Thomas Jefferson UniversityGraduated 2009

Enumeration DateApril 6, 2009

Last NPPES UpdateJune 21, 2020

NPPES CertifiedJune 21, 2020

✔ NPI 1639312663 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgery · Surgical Critical CareAllopathic & Osteopathic Physicians

Taxonomy Code2086S0102X

License✔ Licensed in CA · A135966

Definition

A surgeon with expertise in the management of the critically ill and postoperative patient, particularly the trauma victim, who specializes in critical care medicine diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

1044 S FAIR OAKS AVE STE 101, Pasadena, CA 91105

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Other Names 1

Other Name (5)Andrew Singleton

Other Identifiers 1

Medicaid1134778806CA

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

Andrew Havens Ramsey Singleton 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 ID3375775067

PECOS Enrollment IDI20160712000661

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 12

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.

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.

248 services169 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

109 services91 patients

Critical care, each additional 30 minutes 99292

Critical care refers to special attention given to patients facing life-threatening conditions. Each additional 30 minutes indicates the extension of this specialized care. This might include close monitoring, medication adjustments, and immediate interventions as needed.

102 services85 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.

91 services68 patients

Limited ultrasound scan of abdomen 76705

A limited ultrasound scan of the abdomen is a non-invasive imaging test. It uses sound waves to produce images of the abdominal organs such as the liver, gallbladder, spleen, pancreas, and kidneys. This helps to identify any abnormalities or issues.

45 services45 patients

Ultrasound of heart, follow-up 93308

A follow-up ultrasound of the heart, also known as an echocardiogram, is a non-invasive test that uses sound waves to create images of your heart. It helps doctors monitor your heart's function and structures after initial assessment or treatment.

45 services45 patients

Limited ultrasound scan behind abdominal cavity 76775

A limited ultrasound scan behind the abdominal cavity is a non-invasive imaging method that helps visualize structures in the back of your abdomen. This procedure uses sound waves to create pictures of these areas, assisting in diagnosing certain conditions.

44 services44 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

41 services41 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

39 services39 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

35 services34 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.

24 services24 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.

18 services18 patients

Other Providers at the Same Location NPPES 3

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

DAVID THANH DANG M.D.

Internal Medicine

1044 S FAIR OAKS AVE STE 101
PASADENA, CA 91105

Los Angeles County (626) 344-0640

DAVID T. DANG M.D. INC.

Internal Medicine

1044 S FAIR OAKS AVE STE 101
PASADENA, CA 91105

Los Angeles County (626) 344-0640

JOHN M COMPOGINIS MD INC

Surgery

1044 S FAIR OAKS AVE STE 101
PASADENA, CA 91105

Los Angeles County (916) 425-3238

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 Andrew Singleton's NPI number?

The NPI number for Andrew Singleton is 1639312663. It was assigned to this individual provider in the NPPES registry on April 6, 2009.

Where is Andrew Singleton located?

Andrew Singleton practices at 1044 S Fair Oaks Ave Ste 101, Pasadena, CA 91105. The listed phone number is (626) 449-4859.

What is Andrew Singleton's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Surgical Critical Care, with taxonomy code 2086S0102X.

Is Andrew Singleton enrolled in Medicare?

Yes. Andrew Singleton 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.

When was this NPI record last updated?

The NPPES record for Andrew Singleton was last updated on June 21, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.