DR. MARSHA Y BLAKESLEE M.D., D.O.
NPI 1902925639
Internal Medicine in Severna Park, MD
NPI Status: Active since March 27, 2007
Contact Information
479 JUMPERS HOLE RD
STE 304-A
SEVERNA PARK, MD
ZIP 21146
Phone: (410) 544-0053
Fax: (410) 544-7830
- Individual
- Female
- Internal Medicine
- PECOS Enrolled
- Opted-Out Medicare
- CLIA Number: 21D0960745
- CLIA Cert. Type: Physician Office
- CLIA Exp. Date: 05-18-2027
About MARSHA BLAKESLEE
This page provides the complete NPI Profile along with additional information for Marsha Blakeslee, an internist established in Severna Park, Maryland with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1902925639 assigned on March 2007. The practitioner's primary taxonomy code is 207R00000X with license number H44184 (MD). The provider is registered as an individual and her NPI record was last updated 19 years ago.
- NPI
- 1902925639
- Provider Name
- DR. MARSHA Y BLAKESLEE M.D., D.O.
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 479 JUMPERS HOLE RD STE 304-A SEVERNA PARK, MD 21146
- Location Phone
- (410) 544-0053
- Location Fax
- (410) 544-7830
- Mailing Address
- 479 JUMPERS HOLE RD STE 304-A SEVERNA PARK, MD 21146
- Mailing Phone
- (410) 544-0053
- Mailing Fax
- (410) 544-7830
- Is Sole Proprietor?
- No
- Enumeration Date
- 03-27-2007
- Last Update Date
- 07-09-2007
- Code Navigator
An internist like Marsha Blakeslee 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.
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. Marsha Blakeslee opted out of Medicare effective on 01-01-2014 until 01-01-2028. 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
Internal Medicine
- Taxonomy Code
- 207R00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- H44184
- License State
- MD
- Taxonomy Description
- A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
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.
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 |
|---|---|---|---|
| 732L581D | MEDICARE ID-TYPE UNSPECIFIED (04) | MD | MARSHA BLAKESLEE |
| 000000214001 | OTHER (01) | MD | PHCS |
| 00001181183 08 | OTHER (01) | MD | UNITED HEALTHCARE |
| 531364 04 | OTHER (01) | MD | CAREFIRST RENDERING ID |
| H44184 | OTHER (01) | MD | STATE LICENSE |
| 3195 | OTHER (01) | MD | COVENTRY HEALTHCARE |
| KJ46BL | OTHER (01) | MD | CAREFIRST BCBS |
| F75766 | MEDICARE UPIN (02) | MD |
Medicare Participation & PECOS Enrollment Status
Marsha Blakeslee 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
Opted-Out of Medicare? Yes
Opt-Out Effective Date: 01-01-2014
Opt-Out End Date: 01-01-2028
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): 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 (DE000N)
Patient lift, hydraulic or mechanical, includes any seat, sling, strap(s) or pad(s) (HCPCS:E0630)
1 DME suppliers used 12 Medicare Claims 12 Services Paid
DME-Wheelchairs (DD021N)
Wheelchair accessory, manual swingaway, retractable or removable mounting hardware for joystick, other control interface or positioning accessory (HCPCS:E1028)
2 DME suppliers used 12 Medicare Claims 12 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)
1 DME suppliers used 12 Medicare Claims 12 Services Paid
DME-Wheelchairs (DD009N)
Power wheelchair, group 2 standard, captains chair, patient weight capacity up to and including 300 pounds (HCPCS:K0823)
2 DME suppliers used 12 Medicare Claims 12 Services Paid
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 21146 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99204
- Average New Patient Price $139.05
- Minimum New Patient Price $60.73
- Maximum New Patient Price $183.44
- Average New Patient Copayment $34.76
- Minimum New Patient Copayment $15.18
- Maximum New Patient Copayment $45.86
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99214
- Average Established Patient Price $106.59
- Minimum Established Patient Price $19.6
- Maximum Established Patient Price $149.17
- Average Established Patient Copayment $26.64
- Minimum Established Patient Copayment $4.9
- Maximum Established Patient Copayment $37.29
* 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.
CLIA Information
The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:
- CLIA Number
- 21D0960745
- Facility Type
- Physician Office
- Certificate Effective Date
- May 19, 2025
- Certificate Expiration Date
- May 18, 2027
- Laboratory Director
- MARSHA Y. BLAKESLEE MD
- Certificate Type
- Certificate for Provider-Performed Microscopy Procedures (PPMP)
- Certificate Type Description
- This CLIA certificate is issued to Marsha Blakeslee in which a physician, midlevel practitioner or dentist that performs specific microscopy procedures during the course of a patient's visit. A limited list of provider-performed microscopy procedures is included under this certificate type, which are categorized as moderate complexity testing.
Reviews for DR. MARSHA Y BLAKESLEE M.D., D.O.
There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.
NPI 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 1902925639, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).
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 61 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 13 providers are registered at the same or a nearby location.
SEVERNA PARK, MD 21146
SEVERNA PARK, MD 21146
SEVERNA PARK, MD 21146
SEVERNA PARK, MD 21146
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1902925639, enumerated as an "individual" on March 27, 2007.
The provider is located at 479 JUMPERS HOLE RD STE 304-A SEVERNA PARK, MD 21146 and the phone number is (410) 544-0053.
Internal Medicine with taxonomy code 207R00000X.
The provider might be accepting Accepts: Medicare, Medicaid, Private Healthcare Systems. Please consult your insurance carrier or call the provider to verify.
