IRVING S SMITH DO
NPI 1023206968
Internal Medicine - Sleep Medicine in Littleton, NH
NPI Status: Active since October 04, 2007
Contact Information
580 ST JOHNSBURY ROAD
LITTLETON, NH
ZIP 03561
Phone: (860) 364-7029
Fax: (860) 364-7079
NPPES record last updated: August 24, 2015. Verified against the NPPES registry weekly; last sync: July 12, 2026.
- Individual
- Male
- Years of Experience 23
- Internal Medicine
- Sleep Medicine
- Accepts Insurance
- Accepts Medicare Approved Payment
- PECOS Enrolled
About IRVING SMITH
This page provides the complete NPI Profile along with additional information for Irving Smith, an internist established in Littleton, New Hampshire with a medical specialization in Internal Medicine, focusing in sleep medicine and more than 23 years of experience. He graduated from Nova Southeastern Univ College Of Dental Medicine in 2004. The healthcare provider is registered in the NPI registry with number 1023206968 assigned on October 2007. The practitioner's primary taxonomy code is 207RS0012X with license number 048601 (CT). The provider is registered as an individual and his NPI record was last updated 11 years ago.
- NPI
- 1023206968
- Provider Name
- IRVING S SMITH DO
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 580 ST JOHNSBURY ROAD LITTLETON, NH 03561
- Location Phone
- (860) 364-7029
- Location Fax
- (860) 364-7079
- Mailing Address
- 600 ST JOHNSBURY ROAD LITTLETON, NH 03561
- Mailing Phone
- (860) 364-7029
- Mailing Fax
- (860) 364-7079
- Medical School Name
- NOVA SOUTHEASTERN UNIV COLLEGE OF DENTAL MEDICINE
- Graduation Year
- 2004
- Is Sole Proprietor?
- No
- Enumeration Date
- 10-04-2007
- Last Update Date
- 08-24-2015
- Code Navigator
An internist like Irving Smith is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.
Location Map
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
Internal Medicine Sleep Medicine
- Taxonomy Code
- 207RS0012X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 048601
- License State
- CT
- Taxonomy Description
- An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.
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) |
|---|---|---|---|---|
| 1 | 207R00000X | Allopathic & Osteopathic Physicians | Internal Medicine | 048601 (CT) |
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Choice Bronze HSA - EPO
- Choice Bronze HSA + Vision + Adult Dental - EPO
- Clear Silver - EPO
- Clear Silver + Vision + Adult Dental - EPO
- Complete Gold - EPO
- Complete Gold + Vision + Adult Dental - EPO
- Complete Silver - EPO
- Complete Silver + Vision + Adult Dental - EPO
- Elite Bronze - EPO
- Elite Bronze + Vision + Adult Dental - EPO
- Everyday Gold - EPO
- Everyday Gold + Vision + Adult Dental - EPO
- Standard Expanded Bronze - EPO
- Standard Expanded Bronze + Vision + Adult Dental - EPO
- Standard Gold - EPO
- Standard Gold + Vision + Adult Dental - EPO
- Standard Silver - EPO
- Standard Silver + Vision + Adult Dental - EPO
- Anthem Bronze Preferred Blue PPO 6000/20%/8000 w/HSA - PPO
- Anthem Bronze Preferred Blue PPO 7000/50%/8000 w/HSA - PPO
- Anthem Bronze Preferred Blue PPO 7500/30%/10000 Value - PPO
- Anthem Bronze Preferred Blue PPO 8500/50%/9200 - PPO
- Anthem Gold Preferred Blue PPO 1000/20%/7500 - PPO
- Anthem Gold Preferred Blue PPO 2000/0%/6500 RxD - PPO
- Anthem Gold Preferred Blue PPO 2000/10%/4600 w/HSA - PPO
- Anthem Gold Preferred Blue PPO 2000/10%/7500 - PPO
- Anthem Gold Preferred Blue PPO 2000/20%/4600 w/HSA - PPO
- Anthem Gold Preferred Blue PPO 3000/0%/7500 RxD - PPO
- Anthem Gold Preferred Blue PPO 500/30%/9000 - PPO
- Anthem Platinum Preferred Blue PPO 250/10%/3500 - PPO
- Anthem Silver Preferred Blue PPO 2500/30%/10000 Value - PPO
- Anthem Silver Preferred Blue PPO 3000/30%/9000 Value - PPO
- Anthem Silver Preferred Blue PPO 3500/20%/10000 - PPO
- Anthem Silver Preferred Blue PPO 3500/20%/7250 w/HSA - PPO
- Anthem Silver Preferred Blue PPO 4000/0%/9000 - PPO
- Anthem Silver Preferred Blue PPO 4000/0%/9000 RxD - PPO
- Anthem Silver Preferred Blue PPO 4000/10%/7250 w/HSA - PPO
- Anthem Silver Preferred Blue PPO 4000/20%/8500 - PPO
- Anthem Bronze Pathway X Enhanced 6000/35% HSA - HMO
- Anthem Bronze Pathway X Enhanced 7000/0% ($0 Virtual PCP + $0 Select Drugs) - HMO
- Anthem Bronze Pathway X Enhanced 7500/50% ($0 Virtual PCP + $0 Select Drugs) Standard - HMO
- Anthem Catastrophic Pathway X Enhanced - HMO
- Anthem Gold Pathway X Enhanced 1200/20% ($0 Virtual PCP + $0 Select Drugs) - HMO
- Anthem Gold Pathway X Enhanced 2000/25% ($0 Virtual PCP + $0 Select Drug) Standard - HMO
- Anthem Gold Pathway X Enhanced 700/40% ($0 Virtual PCP + $0 Select Drugs) - HMO
- Anthem Heart Healthy Bronze Pathway X Enhanced 6000/40% ($0 Virtual PCP + $0 Select Drugs) - HMO
- Anthem Heart Healthy Silver Pathway X Enhanced 4000/0% ($0 Virtual PCP + $0 Select Drugs) - HMO
- Anthem Silver Pathway X Enhanced 4500/20% HSA - HMO
- Anthem Silver Pathway X Enhanced 5500/20% ($0 Virtual PCP + $0 Select Drugs) - HMO
- Anthem Silver Pathway X Enhanced 6000/40% ($0 Virtual PCP + $0 Select Drugs) Standard - HMO
- Anthem Bronze Access Blue New England HMO 6000/20%/8000 w/HSA - HMO
- Anthem Bronze Access Blue New England HMO 7000/50%/8000 w/HSA - HMO
- Anthem Bronze Access Blue New England HMO 7500/30%/10000 Value - HMO
- Anthem Bronze Access Blue New England HMO 8500/50%/9200 - HMO
- Anthem Bronze Pathway X HMO 6000/20%/8000 w/HSA - HMO
- Anthem Bronze Pathway X HMO 7000/50%/8000 w/HSA - HMO
- Anthem Bronze Pathway X HMO 7500/30%/10000 Value - HMO
- Anthem Bronze Pathway X HMO 8500/50%/9200 - HMO
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Medicare Participation & PECOS Enrollment Status
Irving Smith 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.
Irving Smith 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: 6608069810
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: I20151013000688
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
Provider Referred Orders for Durable Medical Equipment, Devices & Supplies
The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.
Durable Medical Equipment
DME-Other DME (DE001N)
Tubing with integrated heating element for use with positive airway pressure device (HCPCS:A4604)
16 DME suppliers used 438 Medicare Claims 438 Services Paid
DME-Other DME (DE001N)
Full face mask used with positive airway pressure device, each (HCPCS:A7030)
16 DME suppliers used 366 Medicare Claims 366 Services Paid
DME-Other DME (DE001N)
Face mask interface, replacement for full face mask, each (HCPCS:A7031)
12 DME suppliers used 336 Medicare Claims 849 Services Paid
DME-Other DME (DE001N)
Cushion for use on nasal mask interface, replacement only, each (HCPCS:A7032)
8 DME suppliers used 87 Medicare Claims 490 Services Paid
DME-Other DME (DE001N)
Pillow for use on nasal cannula type interface, replacement only, pair (HCPCS:A7033)
9 DME suppliers used 66 Medicare Claims 316 Services Paid
DME-Other DME (DE001N)
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap (HCPCS:A7034)
14 DME suppliers used 160 Medicare Claims 160 Services Paid
DME-Other DME (DE001N)
Headgear used with positive airway pressure device (HCPCS:A7035)
18 DME suppliers used 284 Medicare Claims 284 Services Paid
DME-Other DME (DE001N)
Chinstrap used with positive airway pressure device (HCPCS:A7036)
5 DME suppliers used 23 Medicare Claims 23 Services Paid
DME-Other DME (DE001N)
Tubing used with positive airway pressure device (HCPCS:A7037)
6 DME suppliers used 34 Medicare Claims 34 Services Paid
DME-Other DME (DE001N)
Filter, disposable, used with positive airway pressure device (HCPCS:A7038)
17 DME suppliers used 481 Medicare Claims 2677 Services Paid
DME-Other DME (DE001N)
Water chamber for humidifier, used with positive airway pressure device, replacement, each (HCPCS:A7046)
14 DME suppliers used 182 Medicare Claims 182 Services Paid
DME-Oxygen and Supplies (DC000N)
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing (HCPCS:E0431)
2 DME suppliers used 31 Medicare Claims 31 Services Paid
DME-Other DME (DE005N)
Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) (HCPCS:E0466)
1 DME suppliers used 12 Medicare Claims 12 Services Paid
DME-Other DME (DE001N)
Respiratory assist device, bi-level pressure capability, without backup rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) (HCPCS:E0470)
3 DME suppliers used 119 Medicare Claims 119 Services Paid
DME-Other DME (DE001N)
Respiratory assist device, bi-level pressure capability, with back-up rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) (HCPCS:E0471)
4 DME suppliers used 33 Medicare Claims 33 Services Paid
DME-Other DME (DE001N)
Humidifier, heated, used with positive airway pressure device (HCPCS:E0562)
9 DME suppliers used 52 Medicare Claims 52 Services Paid
DME-Other DME (DE001N)
Humidifier, heated, used with positive airway pressure device (HCPCS:E0562)
2 DME suppliers used 41 Medicare Claims 45 Services Paid
DME-Other DME (DE001N)
Continuous positive airway pressure (cpap) device (HCPCS:E0601)
11 DME suppliers used 406 Medicare Claims 417 Services Paid
DME-Oxygen and Supplies (DC002N)
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate (HCPCS:E1390)
4 DME suppliers used 62 Medicare Claims 62 Services Paid
Physician Visit Costs
The typical physician office visit costs for Medicare beneficiaries in this area are: $33.02 for a new patient copayment and $25.38 for an established patient copayment.
The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.
For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.
The prices below reflect the costs for new and established patients in the 03561 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99204
- Average New Patient Price $132.09
- Minimum New Patient Price $57.75
- Maximum New Patient Price $174.26
- Average New Patient Copayment $33.02
- Minimum New Patient Copayment $14.43
- Maximum New Patient Copayment $43.56
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99214
- Average Established Patient Price $101.54
- Minimum Established Patient Price $18.7
- Maximum Established Patient Price $142.15
- Average Established Patient Copayment $25.38
- Minimum Established Patient Copayment $4.67
- Maximum Established Patient Copayment $35.53
* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.
Find Provider Hospital Affiliations - Privileges
Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.
Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Irving Smith is affiliated with the following medical facilities:
| Hospital Name | Address | Phone | Hospital Type | Overall Rating |
|---|---|---|---|---|
| WEEKS MEDICAL CENTER | 173 MIDDLE STREET LANCASTER, NH 03584 | (603) 788-4911 | Critical Access Hospitals |
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NPI Number Validation
How NPI Validation Works
The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.
To verify the NPI 1023206968, we treat the final digit (8) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 52. The final step is to find the difference between that total and the next multiple of ten (60 - 52 = 8).
Digit-by-digit view
Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.
Step 1: Double every other digit from the right
Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 52 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 3 providers are registered at the same or a nearby location.
LITTLETON, NH 03561
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1023206968, enumerated as an "individual" on October 04, 2007.
The provider is located at 580 ST JOHNSBURY ROAD LITTLETON, NH 03561 and the phone number is (860) 364-7029.
Internal Medicine with taxonomy code 207RS0012X and a focus in Sleep Medicine.
The provider might be accepting Accepts: Ambetter from NH Healthy Families, Anthem Blue. Please consult your insurance carrier or call the provider to verify.
Irving Smith is affiliated with: WEEKS MEDICAL CENTER.
