DR. ALYSSA KRISTINE STASSI D.O.
NPI 1831464858
Surgery - Surgical Critical Care in Phoenix, AZ

NPI Status: Active since March 09, 2012

Contact Information

16601 N 40TH ST STE 204
PHOENIX, AZ
ZIP 85032
Phone: (602) 633-3721
Fax: (602) 595-1127

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  • Individual
  • Female
  • Years of Experience 14
  • Surgery
  • Surgical Critical Care
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About ALYSSA STASSI

This page provides the complete NPI Profile along with additional information for Alyssa Stassi, a provider established in Phoenix, Arizona with a medical specialization in Surgery, focusing in surgical critical care and more than 14 years of experience. She graduated from Lake Erie College Of Osteopathic Medicine, Erie in 2012. The healthcare provider is registered in the NPI registry with number 1831464858 assigned on March 2012. The practitioner's primary taxonomy code is 2086S0102X with license number 007597 (AZ). The provider is registered as an individual and her NPI record was last updated 4 years ago.

NPI
1831464858
Provider Name
DR. ALYSSA KRISTINE STASSI D.O.
Gender
Female
Entity Type
Individual
Location Address
16601 N 40TH ST STE 204 PHOENIX, AZ 85032
Location Phone
(602) 633-3721
Location Fax
(602) 595-1127
Mailing Address
16601 N 40TH ST STE 204 PHOENIX, AZ 85032
Mailing Phone
(602) 633-3721
Mailing Fax
(602) 595-1127
Medical School Name
LAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, ERIE
Graduation Year
2012
Is Sole Proprietor?
Yes
Enumeration Date
03-09-2012
Last Update Date
10-21-2021
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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Surgery Surgical Critical Care

Taxonomy Code
2086S0102X
Type
Allopathic & Osteopathic Physicians
License No.
007597
License State
AZ
Taxonomy Description
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1208600000XAllopathic & Osteopathic Physicians

Surgery

34.011950 (OH)
2208600000XAllopathic & Osteopathic Physicians

Surgery

007597 (AZ)
3390200000XStudent, Health Care

Student in an Organized Health Care Education/Training Program

 

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Bronze Complete $0 Tier-1 PCP, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care, $0 Core Rx - HMO
  • Bronze Complete+Dental $0 Tier-1 PCP, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care, $0 Core Rx - HMO
  • Bronze Elite $0 Tier-1 PCP, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care/Referred Labs, $0 Advanced Rx - HMO
  • Bronze Elite+Dental $0 Tier-1 PCP, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care/Referred Labs, $0 Advanced Rx - HMO
  • Bronze Standard - HMO
  • Catastrophic Standard - HMO
  • Gold Complete $0 Tier-1 PCP, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care, $0 Core Rx - HMO
  • Gold Complete+Dental $0 Tier-1 PCP, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care, $0 Core Rx - HMO
  • Gold Elite $0 Tier-1 PCP, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care/Referred Labs, $0 Advanced Rx - HMO
  • Gold Elite+Dental $0 Tier-1 PCP, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care/Referred Labs, $0 Advanced Rx - HMO
  • Gold Standard - HMO
  • Silver Complete $0 Tier-1 PCP, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care, $0 Core Rx - HMO
  • Silver Complete+Dental $0 Tier-1 PCP, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care, $0 Core Rx - HMO
  • Silver Elite $0 Tier-1 PCP, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care/Referred Labs, $0 Advanced Rx - HMO
  • Silver Elite+Dental $0 Tier-1 PCP, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care/Referred Labs, $0 Advanced Rx - HMO
  • Silver Standard - HMO
  • Blue Portfolio HSA Gold - Statewide PPO Network - PPO
  • Blue PPO PremierHealth Silver - Statewide PPO Network - PPO
  • Blue PPO PremierHealth Gold - Statewide PPO Network - PPO
  • Blue PPO StandardHealth Gold - Statewide PPO Network - PPO
  • Blue PPO StandardHealth Silver - Statewide PPO Network - PPO
  • Imperial Preferred Gold - HMO
  • Imperial Preferred Silver - HMO
  • Imperial Standard Bronze - HMO
  • Imperial Standard Gold - HMO
  • Imperial Standard Silver - HMO

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
406897MEDICAID (05)AZ 

Medicare Participation & PECOS Enrollment Status

Alyssa Stassi is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Alyssa Stassi is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 7618278813

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20180804000181

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Colonoscopy

A colonoscopy is a medical procedure that allows your doctor to examine your colon (the large intestine). It utilizes a thin, flexible tube with a tiny camera on the end, which is inserted through the rectum. This procedure can help identify issues such as polyps, inflammation, or early signs of cancer. It's usually recommended for people over 50 or those with specific risk factors.

This service was performed for 1-10 patients

Critical care, first 30-74 minutes

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.

This service was performed 70 times for 57 patients

Follow-up hospital inpatient care per day, typically 25 minutes

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.

This service was performed 104 times for 65 patients

Follow-up hospital inpatient care per day, typically 35 minutes

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.

This service was performed 26 times for 16 patients

Hospital discharge day management, more than 30 minutes

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.

This service was performed 12 times for 12 patients

Initial hospital inpatient care per day, typically 30 minutes

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

This service was performed 13 times for 13 patients

Initial hospital inpatient care per day, typically 50 minutes

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.

This service was performed 17 times for 16 patients

Limited ultrasound scan of abdomen

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.

This service was performed 43 times for 43 patients

Ultrasound of heart, follow-up

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.

This service was performed 30 times for 30 patients

Upper gastrointestinal (GI) endoscopy for acid reflux

An upper GI endoscopy is a procedure to examine your esophagus and stomach using a thin, flexible tube called an endoscope. It helps diagnose conditions like acid reflux by identifying any inflammation or damage. It's generally safe, performed under sedation, and takes about 15-30 minutes.

This service was performed for 1-10 patients

Reviews for DR. ALYSSA KRISTINE STASSI D.O.

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1831464858
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2861868810
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 8 + 6 + 1 + 8 + 6 + 8 + 8 + 1 + 0 + 24 = 72
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
80 - 72 = 88

The NPI number 1831464858 is valid because the calculated check digit 8 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 20 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1699027037DR. VARUN CHAKRAVORTY M.D.
Individual
Surgery16601 N 40TH ST STE 204
PHOENIX, AZ 85032
(602) 996-4747
1114188950MR. SCOTT SHOLEM
Individual
Surgery (Trauma Surgery)16601 N 40TH ST STE 204
PHOENIX, AZ 85032
(602) 996-4747
1124204177DR. MEGHANN LEE KAISER M.D.
Individual
Surgery (Surgical Critical Care)16601 N 40TH ST STE 204
PHOENIX, AZ 85032
(602) 633-3721
1194047134DR. QAALI A HUSSEIN M.D.
Individual
Surgery (Surgical Critical Care)16601 N 40TH ST STE 204
PHOENIX, AZ 85032
(602) 633-3721
1326478017 KIMBERLI BRUCE ACNP
Individual
Nurse Practitioner (Acute Care)16601 N 40TH ST STE 204
PHOENIX, AZ 85032
(602) 633-3721
1376027557MR. CHARLES DOUGLAS BALCOME ACNP
Individual
Nurse Practitioner (Acute Care)16601 N 40TH ST STE 204
PHOENIX, AZ 85032
(602) 633-3721
1447430491DR. FRANCIS REGINALD ALI-OSMAN MD
Individual
Surgery (Surgical Critical Care)16601 N 40TH ST STE 204
PHOENIX, AZ 85032
(602) 633-3722
1477021426 JUSTIN THOMAS HALL ACNP
Individual
Nurse Practitioner (Acute Care)16601 N 40TH ST STE 204
PHOENIX, AZ 85032
(602) 633-3721
1649546193DR. ACE ASSAF OVIL M.D
Individual
Surgery (Trauma Surgery)16601 N 40TH ST STE 204
PHOENIX, AZ 85032
(602) 633-3721
1770515751 JOSEPH FRANK SUCHER M.D.
Individual
Surgery (Surgical Critical Care)16601 N 40TH ST STE 204
PHOENIX, AZ 85032
(602) 633-3721
1891012225 HOANG LIM D.O.
Individual
Surgery (Surgical Critical Care)16601 N 40TH ST STE 204
PHOENIX, AZ 85032
(602) 633-3721
1922209600DR. SCOTT NICHOLAS WELLE DO
Individual
Surgery16601 N 40TH ST STE 204
PHOENIX, AZ 85032
(602) 633-3721
1972575504DR. ALICIA MANGRAM MD
Individual
Surgery (Surgical Critical Care)16601 N 40TH ST STE 204
PHOENIX, AZ 85032
(602) 633-3721
1831707579DR. LANDON C RICHARDSON DNP
Individual
Nurse Practitioner (Acute Care)16601 N 40TH ST STE 204
PHOENIX, AZ 85032
(602) 633-3721
1174820542DR. NASRIN GHALYAIE M.D
Individual
Colon & Rectal Surgery16601 N 40TH ST STE 204
PHOENIX, AZ 85032
(602) 996-4747
1023014016DR. SCOTT J HILLMANN M.D.
Individual
Surgery16601 N 40TH ST STE 204
PHOENIX, AZ 85032
(602) 996-4747
1073541017DR. JEFFREY A SINGER MD
Individual
Surgery16601 N 40TH ST STE 204
PHOENIX, AZ 85032
(602) 996-4747
1194911719DR. ROOZBEH RASSADI M.D.
Individual
Surgery16601 N 40TH ST STE 204
PHOENIX, AZ 85032
(602) 996-4747
1306205331VALLEY MULTISPECIALTY CRITICAL CARE SERVICES LLC
Organization
Internal Medicine (Critical Care Medicine)16601 N 40TH ST STE 204
PHOENIX, AZ 85032
(602) 996-4747
1316997349MRS. CYNTHIA J SHIVELY FNP-BC
Individual
Nurse Practitioner (Family)16601 N 40TH ST STE 204
PHOENIX, AZ 85032
(602) 996-4747

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1831464858, enumerated in the NPI registry as an "individual" on March 09, 2012

The provider is located at 16601 N 40th St Ste 204 Phoenix, Az 85032 and the phone number is (602) 633-3721

The provider's speciality is Surgery with taxonomy code 2086S0102X with a focus in Surgical Critical Care

The provider has more than 14 years of experience. She graduated from Lake Erie College Of Osteopathic Medicine, Erie in 2012.

The provider might be accepting Accepts: Antidote Health Plan of Arizona, Inc., Blue Cross. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

The most common procedures or services performed by this practitioner are: Colonoscopy, Critical care, first 30-74 minutes, Follow-up hospital inpatient care per day, typically 25 minutes, Follow-up hospital inpatient care per day, typically 35 minutes, Hospital discharge day management, more than 30 minutes, Initial hospital inpatient care per day, typically 30 minutes, Initial hospital inpatient care per day, typically 50 minutes, Limited ultrasound scan of abdomen, Ultrasound of heart, follow-up and Upper gastrointestinal (GI) endoscopy for acid reflux.

This NPI record was last updated on March 09, 2012. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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