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ARJUN SINGH M.D.
NPI 1780619957
Internal Medicine in Saint Louis, MO

Active since July 12, 2006PECOS EnrolledAccepts Medicare AssignmentCLIA 26D0860996 · Waiver
6013 HAMPTON AVE, SAINT LOUIS, MO 63109(314) 353-8854 Get Directions Write a Review

NPPES record last updated: February 22, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Arjun Singh M.d. NPPES

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

ARJUN SINGH M.D. (NPI 1780619957) is an individual internal medicine provider in Saint Louis, Missouri, licensed in Missouri (MD 104712) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through August 31, 2028, and is affiliated with Alton Memorial Hospital.

NPPES Registry Identity

NPI1780619957
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameARJUN SINGHCredential: M.D.
Location Address6013 HAMPTON AVESaint Louis, MO 63109-3608
Mailing Address6013 Hampton AveSaint Louis, MO 63109-3608 · (314) 353-8854
Phone(314) 353-8854
Sole ProprietorYes
Medical School CMSOtherGraduated 1985
Enumeration DateJuly 12, 2006
Last NPPES UpdateFebruary 22, 2021
NPPES CertifiedFebruary 22, 2021
✔ NPI 1780619957 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MO · MD 104712
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.
Also ListedHospitalistTaxonomy 208M00000X · License 036092474 (IL), 104712 (MO)
6013 HAMPTON AVE, Saint Louis, MO 63109
Open in Google Maps ↗

Secondary Practice Location 1

Location 11 Memorial DrAlton, IL 62002-6722 · Phone (618) 463-7240

Other Identifiers 1

Medicaid206814006MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.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

Arjun Singh 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 ID5991829400
PECOS Enrollment IDI20100903000504, I20160627001217
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

4

Medicare enrollment records show Arjun Singh reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Fairview Heights Medical Group, Sc
11 mi
Internal Medicine
670 MASON RIDGE CENTER DR, STE 300
Saint Louis, MO 63141
  • Reassigned Medicare billing, Illinois and Missouri enrollments
  • Also billed through NPI 1679503668 (Missouri)
  • 507 clinicians in this Medicare group
NPI 1811392210 (314) 996-7644
Physician Groups Lc
11 mi
Multi-Specialty
670 MASON RIDGE CENTER DR STE 300
Saint Louis, MO 63141
  • Reassigned Medicare billing, Missouri enrollment
  • 611 clinicians in this Medicare group
NPI 1285664268 (314) 996-7644
Midwest Inpatient Anderson Health, Inc
22 mi
Emergency Medicine
6800 IL 162
Maryville, IL 62062
  • Reassigned Medicare billing, Illinois enrollment
  • 124 clinicians in this Medicare group
NPI 1821758608 (618) 288-5711
24 On Physicians, PC
207 mi
Hospitalist
1100 E NORRIS DR
Ottawa, IL 61350
  • Reassigned Medicare billing, Illinois enrollment
  • 233 clinicians in this Medicare group
NPI 1346480431 (800) 923-2247

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 26D0860996

Arjun Singh MD · Saint Louis, MO
Active · expires Aug 31, 2028
CLIA Number26D0860996
Laboratory TypePhysician Office
Certificate Effective DateSeptember 1, 2026
Certificate Expiration DateAugust 31, 2028
Laboratory DirectorArjun Singh MD
Laboratory Phone(314) 353-8854
Laboratory LocationArjun Singh MD6013 S Hampton, Saint Louis, MO 63109
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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.

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.
299 services143 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
88 services88 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.
67 services40 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.
32 services32 patients

Hospital Affiliations CMS Care Compare 4

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

Alton Memorial Hospital

Acute Care Hospitals · Alton, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140002
LocationOne Memorial DriveAlton, IL 62002 · Madison County
Emergency services Birthing friendly

Memorial Hospital

Acute Care Hospitals · Belleville, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140185
Location4500 Memorial DriveBelleville, IL 62226 · St. Clair County
Emergency services Birthing friendly

Anderson Hospital

Acute Care Hospitals · Maryville, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140289
Location6800 State Route 162Maryville, IL 62062 · Madison County
Emergency services Birthing friendly

Missouri Baptist Medical Center

Acute Care Hospitals · Town And Country, MO
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260108
Location3015 N Ballas RdTown And Country, MO 63131 · St. Louis County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63109 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
$128.28 typical visit price
range $55.65 – $169.38
Typical copayment $32.07 (range $13.91 – $42.34)
Most-billed visit code 99204
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
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 2

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
2 suppliers20 claims20 services$15.74 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
2 suppliers24 claims24 services$70.05 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

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

MISS CATHERINE L SAVAGE LCSW
Counselor (Mental Health)
6013 HAMPTON AVE
SAINT LOUIS, MO 63109
St. Louis City (314) 293-2688

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 Arjun Singh's NPI number?

The NPI number for Arjun Singh is 1780619957. It was assigned to this individual provider in the NPPES registry on July 12, 2006.

Where is Arjun Singh located?

Arjun Singh practices at 6013 Hampton Ave, Saint Louis, MO 63109. The listed phone number is (314) 353-8854.

What is Arjun Singh's specialty?

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

Is Arjun Singh enrolled in Medicare?

Yes. Arjun Singh 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 Arjun Singh's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Arjun Singh reassigns Medicare benefits to 4 organizations: Fairview Heights Medical Group, Sc (Saint Louis, MO), Physician Groups Lc (Saint Louis, MO), Midwest Inpatient Anderson Health, Inc (Maryville, IL) and 24 On Physicians, PC (Ottawa, IL). 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 Arjun Singh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Does Arjun Singh hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 26D0860996) is associated with this NPI, valid through August 31, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Arjun Singh accept?

Health plans from Anthem Blue Cross and Blue Shield list Arjun Singh 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 Arjun Singh affiliated with any hospitals?

According to CMS data, Arjun Singh is affiliated with Alton Memorial Hospital, Memorial Hospital, Anderson Hospital and Missouri Baptist Medical Center.

When was this NPI record last updated?

The NPPES record for Arjun Singh was last updated on February 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.