DR. CAMMIE FAITH LESSER MD PHD
NPI 1639160765
Internal Medicine in Boston, MA
NPI Status: Active since October 28, 2005
Contact Information
55 FRUIT STREET
FND 8
BOSTON, MA
ZIP 02114
Phone: (617) 726-3812
Fax: (617) 726-7416
- Individual
- Female
- Years of Experience 31
- Internal Medicine
- Accepts Insurance
- Accepts Medicare Approved Payment
- PECOS Enrolled
About CAMMIE LESSER
This page provides the complete NPI Profile along with additional information for Cammie Lesser, an internist established in Boston, Massachusetts with a medical specialization in Internal Medicine and more than 31 years of experience. She graduated from University Of California, San Francisco School Of Medicine in 1995. The healthcare provider is registered in the NPI registry with number 1639160765 assigned on October 2005. The practitioner's primary taxonomy code is 207R00000X with license number 216405 (MA). The provider is registered as an individual and her NPI record was last updated 18 years ago.
- NPI
- 1639160765
- Provider Name
- DR. CAMMIE FAITH LESSER MD PHD
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 55 FRUIT STREET FND 8 BOSTON, MA 02114
- Location Phone
- (617) 726-3812
- Location Fax
- (617) 726-7416
- Mailing Address
- PO BOX 9142 MASS GENERAL PHYSICIAN ORGANIZATION CHARLESTOWN, MA 02129
- Mailing Phone
- (617) 724-0287
- Mailing Fax
- (617) 726-7416
- Medical School Name
- UNIVERSITY OF CALIFORNIA, SAN FRANCISCO SCHOOL OF MEDICINE
- Graduation Year
- 1995
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 10-28-2005
- Last Update Date
- 07-08-2007
- Code Navigator
An internist like Cammie Lesser 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.
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.
- 216405
- License State
- MA
- 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.
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) |
|---|
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Anthem Bronze Access Blue New England HMO 5000/10%/8000 w/HSA - HMO
- Anthem Bronze Access Blue New England HMO 5000/20%/8000 w/HSA - HMO
- Anthem Bronze Access Blue New England HMO 6500/30%/9200 Value - HMO
- Anthem Bronze Access Blue New England HMO 7000/50%/8000 w/HSA - HMO
- Anthem Bronze Access Blue New England HMO 8500/50%/9200 - HMO
- Anthem Gold Access Blue New England HMO 1000/20%/7500 - HMO
- Anthem Gold Access Blue New England HMO 2000/0%/6500 RxD - HMO
- Anthem Gold Access Blue New England HMO 2000/10%/4600 w/HSA - HMO
- Anthem Gold Access Blue New England HMO 2000/10%/7500 - HMO
- Anthem Gold Access Blue New England HMO 2000/20%/4600 w/HSA - HMO
- Anthem Gold Access Blue New England HMO 3000/0%/5500 RxD - HMO
- Anthem Gold Access Blue New England HMO 500/25%/7000 - HMO
- Anthem Platinum Access Blue New England HMO 250/10%/3500 - HMO
- Anthem Silver Access Blue New England HMO 2000/30%/9000 Value - HMO
- Anthem Silver Access Blue New England HMO 3000/20%/8500 - HMO
- Anthem Silver Access Blue New England HMO 3000/30%/9000 Value - HMO
- Anthem Silver Access Blue New England HMO 3500/20%/7250 w/HSA - HMO
- Anthem Silver Access Blue New England HMO 4000/0%/8500 - HMO
- Anthem Silver Access Blue New England HMO 4000/0%/8500 RxD - HMO
- Anthem Silver Access Blue New England HMO 4000/10%/7250 w/HSA - HMO
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 |
|---|---|---|---|
| J26429 | OTHER (01) | MA | BCBS MA |
| G89550 | MEDICARE UPIN (02) | ||
| A35722 | MEDICARE ID-TYPE UNSPECIFIED (04) | MA | |
| 2015455 | MEDICAID (05) | MA | |
| 216405 | OTHER (01) | MA | TUFTS HEALTH PLAN |
Medicare Participation & PECOS Enrollment Status
Cammie Lesser 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.
Cammie Lesser 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: 3173716388
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: I20101020001014
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
Areas of Expertise
The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.
Follow-up hospital inpatient care per day, typically 25 minutes
Follow-up hospital inpatient care per day, typically 35 minutes
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
This service was performed 51 times for 16 patientsFollow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
This service was performed 32 times for 12 patientsPhysician Visit Costs
The typical physician office visit costs for Medicare beneficiaries in this area are: $36.02 for a new patient copayment and $27.79 for an established patient copayment.
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 02114 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99204
- Average New Patient Price $144.11
- Minimum New Patient Price $63.72
- Maximum New Patient Price $189.86
- Average New Patient Copayment $36.02
- Minimum New Patient Copayment $15.93
- Maximum New Patient Copayment $47.46
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99214
- Average Established Patient Price $111.18
- Minimum Established Patient Price $21.07
- Maximum Established Patient Price $155.29
- Average Established Patient Copayment $27.79
- Minimum Established Patient Copayment $5.26
- Maximum Established Patient Copayment $38.82
* 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.
Find Provider Hospital Affiliations - Privileges
Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.
Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Cammie Lesser is affiliated with the following medical facilities:
| Hospital Name | Address | Phone | Hospital Type | Overall Rating |
|---|---|---|---|---|
| MASSACHUSETTS GENERAL HOSPITAL | 55 FRUIT STREET BOSTON, MA 02114 | (617) 724-9725 | Acute Care Hospitals |
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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 | 3 | 9 | 1 | 6 | 0 | 7 | 6 | 5 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 6 | 6 | 9 | 2 | 6 | 0 | 7 | 12 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 6 + 6 + 9 + 2 + 6 + 0 + 7 + 1 + 2 + 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 1639160765 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 20 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1962492603 | DR. MARYETTA E. KING M.D. Individual | Pediatrics | 55 FRUIT STREET YAWKEY 5-062 MASSACHUSETTS GENERAL HOSPITAL BOSTON, MA 02114 (617) 726-3826 |
| 1457341646 | DR. XIANGWEI ZHANG MD MS Individual | Anesthesiology | 55 FRUIT STREET CLN 309 BOSTON, MA 02114 (617) 726-3030 |
| 1134119449 | DR. VILMA ENID ORTIZ MD Individual | Anesthesiology | 55 FRUIT STREET CLN 3 BOSTON, MA 02114 (617) 726-3452 |
| 1780674812 | DR. FUMITO ICHINOSE MD Individual | Anesthesiology | 55 FRUIT STREET CLN 3 BOSTON, MA 02114 (617) 726-8980 |
| 1063402139 | DR. GEORGE WILLIAM DEC JR. MD Individual | Internal Medicine | 55 FRUIT STREET YAW 5 BOSTON, MA 02114 (617) 726-8237 |
| 1316928773 | DR. ATHE MICHAELNOEL TSIBRIS MD Individual | Internal Medicine | 55 FRUIT STREET GRJ 504 BOSTON, MA 02114 (617) 726-3812 |
| 1265414551 | DR. RAFAEL VICENTE PIERETTI MD Individual | Urology (Pediatric Urology) | 55 FRUIT STREET WRN 11 BOSTON, MA 02114 (617) 724-0518 |
| 1689656738 | DR. J KENNETH DAVISON MD DDS Individual | Anesthesiology | 55 FRUIT STREET GRB 406E BOSTON, MA 02114 (617) 724-7181 |
| 1710969233 | DR. SUSAN ROVAINE BROWN MD Individual | Psychiatry & Neurology (Psychiatry) | 55 FRUIT STREET WHT 130 BOSTON, MA 02114 (617) 726-2994 |
| 1992788988 | DR. PAUL E HESTERBERG MD Individual | Internal Medicine | 55 FRUIT STREET MASSACHUSETTS GENERAL HOSPITAL COX BUILDING 201 BOSTON, MA 02114 (617) 726-3850 |
| 1912980806 | DR. AHMED BASSEM ELAINI MD Individual | Radiology (Diagnostic Radiology) | 55 FRUIT STREET FND 216 RADIOLOGICAL ASSOCIATES BOSTON, MA 02114 (617) 724-4255 |
| 1649253386 | DR. CHRISTIANA A IYASERE MD Individual | Internal Medicine | 55 FRUIT STREET BAR 917 MEDICAL ACCESS UNIT BOSTON, MA 02114 (617) 724-7491 |
| 1225012560 | FRANK E HOKEMA MD Individual | Anesthesiology | 55 FRUIT STREET CLN 309 BOSTON, MA 02114 (617) 726-3030 |
| 1063496479 | DR. JENNIFER S TEMEL MD Individual | Internal Medicine (Medical Oncology) | 55 FRUIT STREET YAW 7B HEMATOLOGY/ONCOLOGY BOSTON, MA 02114 (617) 724-1136 |
| 1801870910 | DR. REX NEAL SMITH MD PHD Individual | Pathology (Immunopathology) | 55 FRUIT STREET WRN 2 PATHOLOGY ASSOCIATES BOSTON, MA 02114 (617) 726-1835 |
| 1609851658 | DR. ROBERT L DOYLE MD Individual | Psychiatry & Neurology (Psychiatry) | 55 FRUIT STREET YAW 6900 CHILD & ADOLESCENT PSYCHIATRY BOSTON, MA 02114 (617) 726-6300 |
| 1457336125 | DR. PETER FRANCIS DUNN MD Individual | Anesthesiology (Critical Care Medicine) | 55 FRUIT STREET CLN 2 ANESTHESIA ASSOCIATES BOSTON, MA 02114 (617) 726-7542 |
| 1518946441 | DR. MARIA TERESA VIVALDI MD Individual | Internal Medicine (Cardiovascular Disease) | 55 FRUIT STREET VBK 508 BOSTON, MA 02114 (617) 726-8871 |
| 1144209461 | DR. SHABIN NANJI MBBC Individual | Pathology (Anatomic Pathology & Clinical Pathology) | 55 FRUIT STREET MASSACHUSETTS GENERAL HOSPITAL WRN 219 BOSTON, MA 02114 (617) 724-1422 |
| 1083684674 | DR. JOSEPH JAMES FRASSICA MD DDS Individual | Anesthesiology (Critical Care Medicine) | 55 FRUIT STREET ELL 317 BOSTON, MA 02114 (617) 724-4380 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1639160765, enumerated in the NPI registry as an "individual" on October 28, 2005
The provider is located at 55 Fruit Street Fnd 8 Boston, Ma 02114 and the phone number is (617) 726-3812
The provider's speciality is Internal Medicine with taxonomy code 207R00000X
The provider has more than 31 years of experience. She graduated from University Of California, San Francisco School Of Medicine in 1995.
The provider might be accepting Accepts: Anthem Blue Cross and Blue Shield, Blue Cross Blue. 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), a Home Health Agency (HHA) and Power Mobility Devices.
Medicare beneficiaries should expect a typical cost of $144.11 with an average copayment of $36.02 for new patient appointments. Established patients should expect a typical charge of $111.18 and an average copayment of 27.79. Please review your insurance plan or contact the provider directly to determine your specific costs.
The most common procedures or services performed by this practitioner are: Follow-up hospital inpatient care per day, typically 25 minutes and Follow-up hospital inpatient care per day, typically 35 minutes.
The practitioner is affiliated to the following hospital(s): MASSACHUSETTS GENERAL HOSPITAL. Hospital affiliations are identified through self-reporting data and service claims based on the place of service.
This NPI record was last updated on October 28, 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].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.