DR. MARSHALL LAWRENCE HORWITZ D.D.S.
NPI 1750374468
Dentist in Worcester, MA
NPI Status: Active since August 27, 2005
Contact Information
111 ELM ST
SUITE 101
WORCESTER, MA
ZIP 01609
Phone: (508) 799-4626
Fax: (508) 791-4288
- Individual
- Male
- Dentist
- Accepts Insurance
- PECOS Enrolled
About MARSHALL HORWITZ
This page provides the complete NPI Profile along with additional information for Marshall Horwitz, a provider established in Worcester, Massachusetts with a medical specialization in Dentist. The healthcare provider is registered in the NPI registry with number 1750374468 assigned on August 2005. The practitioner's primary taxonomy code is 122300000X with license number 13920 (MA). The provider is registered as an individual and his NPI record was last updated 18 years ago.
- NPI
- 1750374468
- Provider Name
- DR. MARSHALL LAWRENCE HORWITZ D.D.S.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 111 ELM ST SUITE 101 WORCESTER, MA 01609
- Location Phone
- (508) 799-4626
- Location Fax
- (508) 791-4288
- Mailing Address
- 111 ELM ST SUITE 101 WORCESTER, MA 01609
- Mailing Phone
- (508) 799-4626
- Mailing Fax
- (508) 791-4288
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 08-27-2005
- Last Update Date
- 07-08-2007
- Code Navigator
A dentist like Marshall Horwitz is a skilled in and licensed provider that diagnoses and treats problems with patients teeth, gums, and related parts of the mouth. Dentists educate patients on how to take care of the teeth and gums and provide information on diet choices that affect oral health. Dentists must be licensed in the state in which they work.
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
Dentist
- Taxonomy Code
- 122300000X
- Type
- Dental Providers
- License No.
- 13920
- License State
- MA
- Taxonomy Description
- A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Anthem Dental Family - PPO
- Anthem Dental Family Enhanced - PPO
- Anthem Dental Family Preventive - PPO
- Anthem Dental Family Value - PPO
- BlueCare Dental 4 Kids? 1A - PPO
- BlueCare Dental 4 Kids? 1B - PPO
- BlueCare Dental? 1A - PPO
- BlueCare Dental? 1B - PPO
- BlueCare Dental? 1C - PPO
- BlueCare Dental? 1D - PPO
- BlueCare Dental 4 Kids? 1A - PPO
- BlueCare Dental 4 Kids? 1B - PPO
- BlueCare Dental? 1A - PPO
- BlueCare Dental? 1B - PPO
- BlueCare Dental? 1C - PPO
- BlueCare Dental? 1D - PPO
- BlueCare Dental 4 Kids? 1A - PPO
- BlueCare Dental 4 Kids? 1B - PPO
- BlueCare Dental? 1A - PPO
- BlueCare Dental? 1B - PPO
- BlueCare Dental? 1C - PPO
- BlueCare Dental? 1D - PPO
- BlueCare Dental 1D - PPO
- BlueCare Dental 4 Kids? 1A - PPO
- BlueCare Dental 4 Kids? 1B - PPO
- BlueCare Dental? 1A - PPO
- BlueCare Dental? 1B - PPO
- BlueCare Dental? 1C - PPO
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Medicare Participation & PECOS Enrollment Status
Marshall Horwitz 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) and a Home Health Agency (HHA).
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
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: No
Physician Visit Costs
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 01609 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99203
- Average New Patient Price $90.7
- Minimum New Patient Price $58.86
- Maximum New Patient Price $177.36
- Average New Patient Copayment $22.67
- Minimum New Patient Copayment $14.71
- Maximum New Patient Copayment $44.34
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99213
- Average Established Patient Price $73.22
- Minimum Established Patient Price $19.11
- Maximum Established Patient Price $144.84
- Average Established Patient Copayment $18.3
- Minimum Established Patient Copayment $4.77
- Maximum Established Patient Copayment $36.21
* 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.
Reviews for DR. MARSHALL LAWRENCE HORWITZ D.D.S.
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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. | |||||||||
| 1 | 7 | 5 | 0 | 3 | 7 | 4 | 4 | 6 | 8 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 7 | 10 | 0 | 6 | 7 | 8 | 4 | 12 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 7 + 1 + 0 + 0 + 6 + 7 + 8 + 4 + 1 + 2 + 24 = 62 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 70 - 62 = 8 | 8 | ||||||||
The NPI number 1750374468 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 15 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1801975057 | MR. FRED W. D'ANGELO II LMHC Individual | Counselor (Mental Health) | 111 ELM ST SUITE 102 WORCESTER, MA 01609 (508) 756-3750 |
| 1962578815 | KATHARINA JARMAS LICSW Individual | Counselor (Addiction (Substance Use Disorder)) | 111 ELM ST SUITE 102 WORCESTER, MA 01609 (508) 756-3750 |
| 1770647844 | KAREN COHEN LMHC Individual | Counselor (Addiction (Substance Use Disorder)) | 111 ELM ST SUITE 102 WORCESTER, MA 01609 (508) 756-3750 |
| 1417013871 | ROBERT SADOWSKI PT Individual | Physical Therapist | 111 ELM ST SUITE 103 WORCESTER, MA 01609 (508) 799-6538 |
| 1295860344 | MS. TARA MICHELLE TIVNAN LMHC Individual | Counselor (Mental Health) | 111 ELM ST SUITE 102 WORCESTER, MA 01609 (508) 756-3750 |
| 1942498175 | J. R. COURTMAN DMD Organization | Dentist | 111 ELM ST SUITE 202 WORCESTER, MA 01609 (508) 755-9231 |
| 1629219647 | MS. SUSAN B. HORWITZ M.A.,CCC Individual | Speech-Language Pathologist | 111 ELM ST SUITE 101 WORCESTER, MA 01609 (508) 799-6278 |
| 1770800765 | JENNIFER L GORMAN PT Individual | Physical Therapist | 111 ELM ST SUITE 103 WORCESTER, MA 01609 (508) 799-6538 |
| 1144513144 | ELM PARK PHYSICAL THERAPY LLC Organization | Physical Therapist | 111 ELM ST SUITE 103 WORCESTER, MA 01609 (508) 799-6538 |
| 1134101751 | DR. TATIANA ANNA HAMAWI M.D. Individual | Pediatrics | 111 ELM ST SUITE 201 WORCESTER, MA 01609 (508) 753-7700 |
| 1699125708 | COMMON PARK DENTAL Organization | Dentist | 111 ELM ST SUITE 203 WORCESTER, MA 01609 (508) 502-7881 |
| 1720533748 | RON HSIN Individual | Dentist | 111 ELM ST SUITE 203 WORCESTER, MA 01609 (508) 926-8633 |
| 1164440517 | ELLIOT W SALLOWAY DMD INC Organization | Dentist (Periodontics) | 111 ELM ST STE 203 WORCESTER, MA 01609 (508) 752-1302 |
| 1801952163 | DYNAMIC PHYSICAL THERAPY SERVICES LLC Organization | Physical Therapist | 111 ELM ST SUITE 103 WORCESTER, MA 01609 (508) 799-6538 |
| 1932249547 | DAVID C. TUCKER D.D.S. HERBERT C. ROSEN D.M.D. PC Organization | Dentist (Endodontics) | 111 ELM ST 201 WORCESTER, MA 01609 (508) 757-2190 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1750374468, enumerated in the NPI registry as an "individual" on August 27, 2005
The provider is located at 111 Elm St Suite 101 Worcester, Ma 01609 and the phone number is (508) 799-4626
The provider's speciality is Dentist with taxonomy code 122300000X
The provider might be accepting Accepts: Anthem Blue Cross and Blue Sheld, Blue Cross and. 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) and a Home Health Agency (HHA).
Medicare beneficiaries should expect a typical cost of $90.7 with an average copayment of $22.67 for new patient appointments. Established patients should expect a typical charge of $73.22 and an average copayment of 18.3. Please review your insurance plan or contact the provider directly to determine your specific costs.
This NPI record was last updated on August 27, 2005. 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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