RACHEL R SINGER PH.D.
NPI 1629227905
Psychologist - Cognitive & Behavioral in Rockville, MD
NPI Status: Active since September 11, 2008
Contact Information
50 W MONTGOMERY AVE STE 110
ROCKVILLE, MD
ZIP 20850
Phone: (301) 610-7850
- Individual
- Female
- Psychologist
- Cognitive & Behavioral
- PECOS Enrolled
- Opted-Out Medicare
About RACHEL SINGER
This page provides the complete NPI Profile along with additional information for Rachel Singer, a provider established in Rockville, Maryland with a medical specialization in Psychologist, focusing in cognitive & behavioral . The healthcare provider is registered in the NPI registry with number 1629227905 assigned on September 2008. The practitioner's primary taxonomy code is 103TB0200X with license number 05115 (MD). The provider is registered as an individual and her NPI record was last updated 5 years ago.
- NPI
- 1629227905
- Provider Name
- RACHEL R SINGER PH.D.
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 50 W MONTGOMERY AVE STE 110 ROCKVILLE, MD 20850
- Location Phone
- (301) 610-7850
- Mailing Address
- 50 W MONTGOMERY AVE STE 110 ROCKVILLE, MD 20850
- Mailing Phone
- (301) 610-7850
- Is Sole Proprietor?
- No
- Enumeration Date
- 09-11-2008
- Last Update Date
- 04-29-2020
- Code Navigator
The provider doesn't accept Medicare and has signed an affidavit to be excluded from the Medicare program. If you are a Medicare beneficiary this means a provider can charge whatever they want for services rendered but must follow certain rules to do so. Rachel Singer opted out of Medicare effective on 01-01-2017 until 01-01-2027. Opt out periods last for two years and cannot be terminated unless the provider is opting out for the very first time and the affidavit is terminated no later than 90 days after the opt out effective date. Opt-out affidavits might renew automatically renew every two years. The provider opted out of Medicare but is permitted to order and refer services to other healthcare providers.
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
Psychologist Cognitive & Behavioral
- Taxonomy Code
- 103TB0200X
- Type
- Behavioral Health & Social Service Providers
- License No.
- 05115
- License State
- MD
- Taxonomy Description
- A psychologist who reflects an experimental-clinical approach distinguished by use of principles of human learning and development and theories of cognitive processing to promote meaningful change in maladaptive human behavior and thinking.
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 | 390200000X | Student, Health Care | Student in an Organized Health Care Education/Training Program |
Medicare Participation & PECOS Enrollment Status
Rachel Singer 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 and Durable Medical Equipment (DME).
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
Opted-Out of Medicare? Yes
Opt-Out Effective Date: 01-01-2017
Opt-Out End Date: 01-01-2027
Eligible to Order and Refer? 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): No
Eligible to Order or Refer Power Mobility Devices: No
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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 | 6 | 2 | 9 | 2 | 2 | 7 | 9 | 0 | 5 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 6 | 4 | 9 | 4 | 2 | 14 | 9 | 0 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 6 + 4 + 9 + 4 + 2 + 1 + 4 + 9 + 0 + 24 = 65 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 70 - 65 = 5 | 5 | ||||||||
The NPI number 1629227905 is valid because the calculated check digit 5 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 6 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1013441880 | DR. KRISHTINE ROSENTHAL PH.D. Individual | Psychologist (Clinical) | 50 W MONTGOMERY AVE STE 110 ROCKVILLE, MD 20850 (301) 610-7850 |
| 1376933556 | DR. CHRISTINA NICOLE DIAZ PSYD Individual | Psychologist | 50 W MONTGOMERY AVE STE 110 ROCKVILLE, MD 20850 (301) 610-7850 |
| 1881339190 | KATHLEEN KING Individual | Social Worker (Clinical) | 50 W MONTGOMERY AVE STE 110 ROCKVILLE, MD 20850 (301) 610-7850 |
| 1376387530 | DR. JEANNETTE MASON REID PHD Individual | Psychologist (Clinical) | 50 W MONTGOMERY AVE STE 110 ROCKVILLE, MD 20850 (301) 610-7850 |
| 1639593262 | DR. KRISTIN BIANCHI PH.D. Individual | Psychologist (Clinical) | 50 W MONTGOMERY AVE STE 110 ROCKVILLE, MD 20850 (301) 610-7850 |
| 1780403592 | KIMBERLEY DAWN MONTGOMERY LMSW Individual | Social Worker (Clinical) | 50 W MONTGOMERY AVE STE 110 ROCKVILLE, MD 20850 (202) 355-3709 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1629227905, enumerated in the NPI registry as an "individual" on September 11, 2008
The provider is located at 50 W Montgomery Ave Ste 110 Rockville, Md 20850 and the phone number is (301) 610-7850
The provider's speciality is Psychologist with taxonomy code 103TB0200X with a focus in Cognitive & Behavioral
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 and Durable Medical Equipment (DME).
No, the provider signed an affidavit on January 01, 2017 to opt-out of the Medicare program. The provider is excluded from the Medicare program until January 01, 2027.
This NPI record was last updated on September 11, 2008. 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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