Preferred Provider Organization. A health care organization composed of physicians, hospitals, or other providers which provides health care services at a reduced fee. A PPO is similar to an HMO, but care is paid for as it is received instead of in advance in the form of a scheduled fee.
MARK L BING, MD â NPI #1386642882. Internal Medicine. 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.
A copy. of the application form, which includes the Enumeratorâs mailing address, will be. available only upon request through the NPI Enumerator. The Enumeratorâs phone. number is (800) 465-3203 or TTY (800) 692-2326.  With the permission of the health care provider, an organization may submit a health.