SANDHYA C AYYAR M.D.
NPI 1861679086
Internal Medicine - Infectious Disease in Aurora, CO

Q: What is Sandhya Ayyar's NPI number?

The NPI number for Sandhya Ayyar is 1861679086. It was assigned to this individual provider in the NPPES registry on January 30, 2008.

Q: What is Sandhya Ayyar's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Q: When was this NPI record last updated?

The NPPES record for Sandhya Ayyar was last updated on January 14, 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.

Active since January 30, 2008PECOS EnrolledAccepts Medicare Assignment

92.8/100

CMS Quality Rating

1550 S POTOMAC ST, SUITE 270, AURORA, CO 80012(303) 750-1800(303) 750-8000 Get Directions Write a Review

NPPES record last updated: January 14, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Sandhya C Ayyar M.d. NPPES

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

SANDHYA C AYYAR M.D. (NPI 1861679086) is an individual infectious disease provider in Aurora, Colorado, licensed in Colorado (46474) and active in the NPI registry since January 2008. She is enrolled in Medicare PECOS and is a graduate of Other (1997).

NPPES Registry Identity

NPI1861679086

Entity TypeIndividualFemale

Primary Taxonomy207RI0200X

Provider Legal NameSANDHYA C AYYARCredential: M.D.

Location Address1550 S POTOMAC ST, SUITE 270Aurora, CO 80012-5455

Mailing Address1550 S Potomac St, Suite 270Aurora, CO 80012-5455 · (303) 750-1800 · Fax (303) 750-8000

Phone(303) 750-1800

Fax(303) 750-8000

Sole ProprietorNo

Medical School CMSOtherGraduated 1997

Enumeration DateJanuary 30, 2008

Last NPPES UpdateJanuary 14, 2015

✔ NPI 1861679086 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RI0200X

License✔ Licensed in CO · 46474

Definition

An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

1550 S POTOMAC ST, Aurora, CO 80012

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Other Identifiers 3

Other46474CO · Co License

Medicaid81631065CO

Medicare PINC300210CO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.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

Sandhya C Ayyar 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 ID1557431814

PECOS Enrollment IDI20080529000763

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 Sandhya Ayyar reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Rocky Mountain Infectious Disease Specialists, P.C.

Same address

Preferred Provider Organization

1550 S POTOMAC ST, SUITE 270
Aurora, CO 80012

Reassigned Medicare billing, Colorado enrollment
13 clinicians in this Medicare group

NPI 1629078993 (303) 750-1800

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 13

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.

Injection, daptomycin, 1 mg J0878

Daptomycin is an antibiotic injection used to treat severe bacterial infections. It works by stopping bacteria from growing and multiplying. The 1 mg dosage refers to the amount of daptomycin in each injection. It's administered by healthcare professionals.

293,720 services31 patients

Injection, ceftriaxone sodium, per 250 mg J0696

Ceftriaxone sodium is an antibiotic injection used to treat a variety of bacterial infections. Each injection contains 250 mg of the medicine. It works by stopping the growth of bacteria in your body.

3,216 services27 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

1,223 services56 patients

Injection, ertapenem sodium, 500 mg J1335

Ertapenem sodium is a potent antibiotic administered via injection to treat a variety of serious bacterial infections. The 500 mg dosage helps your body fight off these bacteria effectively. It's given by a healthcare professional, often in a hospital setting.

1,020 services26 patients

Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less 96367

This procedure involves injecting fluids or medication directly into your vein. It's used for treatment, prevention, or diagnosis. An additional sequential infusion may be given within an hour if needed. This helps to ensure the medicine is distributed effectively in your body.

541 services25 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.

444 services207 patients

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.

236 services73 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.

100 services53 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.

78 services75 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

37 services22 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.

33 services32 patients

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.

28 services28 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.

12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80012 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

$132.55 typical visit price

range $58.06 – $174.82

Typical copayment $33.13 (range $14.51 – $43.70)

Most-billed visit code 99204

Established Patient

$102.03 typical visit price

range $18.88 – $142.79

Typical copayment $25.50 (range $4.72 – $35.69)

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.

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.

92.8/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

100

Improvement Activities

Cost

59.33

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. GEORGE S.L. CHIN MD

Specialist

1550 S POTOMAC ST, SUITE 235
AURORA, CO 80012

Arapahoe County (303) 369-8088

DR. KATRINA S COULTER M.D.

Internal Medicine (Infectious Disease)

1550 S POTOMAC ST, STE. 270
AURORA, CO 80012

Arapahoe County (303) 750-1800

DR. KATHLEEN R KUHN MD

Internal Medicine

1550 S POTOMAC ST, #225
AURORA, CO 80012

Arapahoe County (720) 282-8010

DR. SARAH E THOMPSON O.D.

Optometrist

1550 S POTOMAC ST, SUITE 155
AURORA, CO 80012

Arapahoe County (303) 369-1020

DR. MARK P BERLAND DO

Obstetrics & Gynecology (Gynecology)

1550 S POTOMAC ST, SUITE 135
AURORA, CO 80012

Arapahoe County (303) 369-1019

G KENNETH DEAGMAN MD PC

Internal Medicine

1550 S POTOMAC ST, 360
AURORA, CO 80012

Arapahoe County (303) 755-1164

SUSAN B STEWART O.D.

Optometrist

1550 S POTOMAC ST, SUITE 155
AURORA, CO 80012

Arapahoe County (303) 369-1020

ORTHOPEDIC SURGERY ASSOCIATES, PC

Specialist

1550 S POTOMAC ST, SUITE 250
AURORA, CO 80012

Arapahoe County (303) 750-1022

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 Sandhya Ayyar's NPI number?

The NPI number for Sandhya Ayyar is 1861679086. It was assigned to this individual provider in the NPPES registry on January 30, 2008.

Where is Sandhya Ayyar located?

Sandhya Ayyar practices at 1550 S Potomac St Suite 270, Aurora, CO 80012. The listed phone number is (303) 750-1800.

What is Sandhya Ayyar's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Sandhya Ayyar enrolled in Medicare?

Yes. Sandhya Ayyar 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 Sandhya Ayyar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sandhya Ayyar reassigns Medicare benefits to Rocky Mountain Infectious Disease Specialists, P.C. (Aurora, CO). 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 Sandhya Ayyar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sandhya Ayyar accept?

Health plans from UnitedHealthcare list Sandhya Ayyar 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.

When was this NPI record last updated?

The NPPES record for Sandhya Ayyar was last updated on January 14, 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.