DR. HAROLD FLETCHER KEYSERLING M.D.
NPI 1023035995
Radiology - Diagnostic Neuroimaging in Sacramento, CA
NPI Status: Active since July 16, 2006
Contact Information
3161 L ST
SACRAMENTO, CA
ZIP 95816
Phone: (916) 878-3495
Fax: (916) 736-5533
- Individual
- Male
- Years of Experience 27
- Radiology
- Diagnostic Neuroimaging
- Accepts Insurance
- Accepts Medicare Approved Payment
- PECOS Enrolled
About HAROLD KEYSERLING
This page provides the complete NPI Profile along with additional information for Harold Keyserling, a provider established in Sacramento, California with a medical specialization in Radiology, focusing in diagnostic neuroimaging and more than 27 years of experience. He graduated from Medical College Of Georgia School Of Medicine in 1999. The healthcare provider is registered in the NPI registry with number 1023035995 assigned on July 2006. The practitioner's primary taxonomy code is 2085D0003X with license number C198022 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1023035995
- Provider Name
- DR. HAROLD FLETCHER KEYSERLING M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 3161 L ST SACRAMENTO, CA 95816
- Location Phone
- (916) 878-3495
- Location Fax
- (916) 736-5533
- Mailing Address
- PO BOX 255228 SACRAMENTO, CA 95865
- Mailing Phone
- (800) 470-0071
- Mailing Fax
- (916) 736-5533
- Medical School Name
- MEDICAL COLLEGE OF GEORGIA SCHOOL OF MEDICINE
- Graduation Year
- 1999
- Is Sole Proprietor?
- No
- Enumeration Date
- 07-16-2006
- Last Update Date
- 11-14-2025
- Code Navigator
Location Map
Secondary Locations
- 1670 Clairmont Rd
Decatur, GA 30033
(404) 321-6111
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
Radiology Diagnostic Neuroimaging
- Taxonomy Code
- 2085D0003X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- C198022
- License State
- CA
- Taxonomy Description
- A licensed physician, who has completed a residency program in Neurology, and who has additional training, experience, and competence in the standards of performance and interpretation of Magnetic Resonance Imaging (MRI / MRA) of the head, spine, and peripheral nerves, and Computed Tomography (CT) of the head and spine. Physicians are trained in the administration of contrast media and the recognition and treatment of adverse reactions to contrast media. Neuroimaging training encompasses thorough knowledge of clinical neurology, neurophysiology, neuroanatomy, neurochemistry, neuropharmacology, and dynamics of cerebrospinal fluid circulation. Physicians possess special expertise in the technical aspects and clinical applications of each of the modalities and techniques of neuroimaging.
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 | 2085N0700X | Allopathic & Osteopathic Physicians | Radiology | 200201269 (NC) |
| 2 | 2085N0700X | Allopathic & Osteopathic Physicians | Radiology | 782376 (CA) |
| 3 | 2085R0202X | Allopathic & Osteopathic Physicians | Radiology | 782376 (CA) |
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Blue Advantage Bronze HMO? 204 - HMO
- Blue Advantage Bronze HMO? 301 - HMO
- Blue Advantage Bronze HMO? Standard - HMO
- Blue Advantage Gold HMO? 206 - HMO
- Blue Advantage Gold HMO? 603 - HMO
- Blue Advantage Gold HMO? Standard - HMO
- Blue Advantage Plus Bronze? 303 - POS
- Blue Advantage Plus Bronze? 305 - POS
- Blue Advantage Plus Bronze? Standard - POS
- Blue Advantage Plus Gold? 203 - POS
- Blue Advantage Plus Gold? 803 - POS
- Blue Advantage Plus Gold? Standard - POS
- Blue Advantage Plus Silver? 202 - POS
- Blue Advantage Plus Silver? 605 - POS
- Blue Advantage Plus Silver? Standard - POS
- Blue Advantage Security HMO? 200 - HMO
- Blue Advantage Silver HMO? 205 - HMO
- Blue Advantage Silver HMO? 801 - HMO
- Blue Advantage Silver HMO? Standard - HMO
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Medicare Participation & PECOS Enrollment Status
Harold Keyserling 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.
Harold Keyserling 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: 4284524604
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: I20250224002012
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
Reviews for DR. HAROLD FLETCHER KEYSERLING M.D.
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 1023035995, we treat the final digit (5) 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 5).
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 55 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
SACRAMENTO, CA 95816
SACRAMENTO, CA 95816
SACRAMENTO, CA 95816
SACRAMENTO, CA 95816
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1023035995, enumerated as an "individual" on July 16, 2006.
The provider is located at 3161 L ST SACRAMENTO, CA 95816 and the phone number is (916) 878-3495.
Radiology with taxonomy code 2085D0003X and a focus in Diagnostic Neuroimaging.
The provider might be accepting Accepts: Blue Cross and Blue Shield of Texas. Please consult your insurance carrier or call the provider to verify.
