Dr. Kathryn S. Grannatt, MD

  • Needham, MA
  • Orthopedic surgeon
NPI1568598209PAC ID4789730623
Medicare services, 2024
898
Medicare patients, 2024
386
Part D claims, 2024
236
Publications
2
Hospital affiliations
4
Practice address
148 Chestnut St, Needham, MA 02492
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

The Cancer Center at Beth Israel Deaconess Medical Center - Physical Therapy - HOPD

Acute Care Hospital outpatient department · Needham, Massachusetts

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Dr. Kathryn S. Grannatt is an orthopedic surgeon in Needham, Massachusetts

Dr. Grannatt practices at The Cancer Center at Beth Israel Deaconess Medical Center - Physical Therapy - HOPD in Needham, Massachusetts.

Dr. Grannatt's NPI, 1568598209, was assigned on February 26, 2007. Dr. Grannatt graduated from University of Utah School of Medicine in 2004. Dr. Grannatt holds Massachusetts license 238604.

NPI and contact details
Medicare PAC ID
4789730623
NPI enumeration date
February 26, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
48
Medical school graduation
2004

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Kathryn S. Grannatt practices at The Cancer Center at Beth Israel Deaconess Medical Center - Physical Therapy - HOPD in Needham, Massachusetts

Dr. Grannatt's primary practice is The Cancer Center at Beth Israel Deaconess Medical Center - Physical Therapy - HOPD, at 148 Chestnut St, Needham, MA 02492.

  • The Cancer Center at Beth Israel Deaconess Medical Center - Physical Therapy - HOPD
    148 Chestnut St, Needham, MA 02492

Source: Dmand AI Affiliation Data

Dr. Kathryn S. Grannatt is affiliated with 7 sites of care and 2 medical groups

Dr. Grannatt's primary practice is The Cancer Center at Beth Israel Deaconess Medical Center - Physical Therapy - HOPD in Needham, Massachusetts. Dr. Grannatt is also affiliated with Beth Israel Deaconess Hospital-Needham. The medical group on file is Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center (HMFP). Dmand AI also links Dr. Grannatt to 3 more hospitals, 2 group practices and clinics and 1 medical group, each named with a free account.

See all 9 affiliations for Dr. Grannatt

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Kathryn S. Grannatt's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grannatt practices, 7 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
The Cancer Center at Beth Israel Deaconess Medical Center - Physical Therapy - HOPDAvailable with a free account
+6 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Kathryn S. Grannatt is one of 593 orthopedic surgeons in Massachusetts

Orthopaedic surgery is Dr. Grannatt's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Grannatt is licensed in Massachusetts.

Specialties and state licenses

  • Orthopaedic surgery, MassachusettsPrimaryLicense 238604 · taxonomy 207X00000X

Orthopedic surgeons near Dr. Grannatt

Counts of orthopedic surgeons with a Dmand AI profile, by place and practice. Each opens the list.

593orthopedic surgeons in Massachusetts
2orthopedic surgeons in Needham

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Kathryn S. Grannatt billed Medicare for 898 services in 2024

CMS data shows 898 Medicare services from Dr. Grannatt across 5 procedure codes in 2024, for 386 Medicare patients. Medicare paid $51,509 for them.

Medicare services, 2024898
Medicare patients386
Paid by Medicare$51,509
Procedure codes5

Dr. Grannatt's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 6062024: 5657%
Surgery
2023: 3932024: 33315%

Where Dr. Grannatt's Medicare services took place, 2024

  • In an office142%
  • In a facility88498%

Dr. Grannatt compared with the Massachusetts median for orthopedic surgeons, 2024

  • Dr. Grannatt
  • Massachusetts median
Medicare services
898vs 67234% above
Medicare patients
386vs 30228% above
Part D claims
167vs 503.3 times

Medians across 543 orthopedic surgeons in Massachusetts with Dmand AI profiles that report each measure.

Dr. Grannatt's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Kathryn S. Grannatt treated 386 Medicare patients in 2024, average age 75

CMS counts 386 Medicare patients who saw Dr. Grannatt in 2024. The largest group is 65 to 74, with 169 patients. 73% of them have high cholesterol, and 71% have arthritis. 11% are also on Medicaid. Their average risk score is 1.05, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Grannatt's median patient age at 66, with 55% women.

Medicare patients, 2024386
Average age75
Average risk score1.05
Also on Medicaid11%

Dr. Grannatt's Medicare patients by age, 2024

Dr. Grannatt's Medicare patients by sex, 2024

  • Women21756%
  • Men16944%

Chronic conditions among Dr. Grannatt's Medicare patients, 2024

  1. High cholesterol73%
  2. Arthritis71%
  3. High blood pressure68%
  4. Anxiety25%
  5. Mood disorders23%
  6. Osteoporosis23%
  7. Ischemic heart disease20%
  8. Atrial fibrillation19%

Share of Medicare patients with each condition. A patient can have several.

Dr. Grannatt's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 66

Patient panel by sex, all payers

  • Women55%
  • Men45%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Kathryn S. Grannatt wrote 236 Medicare Part D claims in 2024

In 2024, Dr. Grannatt wrote 236 Medicare Part D claims for 83 patients. 100% of them were for generic drugs. CMS names the drug for 167 of them, across 5 drugs with 11 or more claims each, at $1,768 in total drug cost. In 2023, CMS named 224 claims across 8 drugs.

Part D claims, 2024236
Drugs named by CMS5
Total drug cost$1,768
Part D patients83

Dr. Grannatt's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Grannatt's Part D claims, 2024

  • Opioids12%29 of 236 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2242024: 16725%

Drugs named by CMS: 5 in 2024, 8 in 2023.

See all prescribing by Dr. Grannatt

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Kathryn S. Grannatt ranks in the 69th percentile for upper limb (arm) arthroscopy (minimally invasive joint repair) in Medicare

Dr. Grannatt accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Grannatt as offering telehealth. CMS counts 25 procedures of upper limb (arm) arthroscopy (minimally invasive joint repair) by Dr. Grannatt, more than 69% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Where Dr. Grannatt ranks in Medicare procedure volume

Upper limb (arm) arthroscopy (minimally invasive joint repair)
69th percentile25 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Lower limb (leg) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Kathryn S. Grannatt has 2 publications on record

Dmand AI links 2 papers to Dr. Grannatt in 2016. Dr. Grannatt's most frequent co-authors are Umer Dasti, MD and Benton E. Heyworth, MD.

Papers2

Dr. Grannatt's most frequent co-authors

Recent publications by Dr. Grannatt

See all 2 publications and co-authors

See who Dr. Grannatt researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Grannatt works with, so you can find a warm path to the right orthopedic surgeons.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Kathryn S. Grannatt graduated from University of Utah School of Medicine

Dr. Grannatt graduated from University of Utah School of Medicine in 2004.

  1. Medical schoolUniversity of Utah School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Kathryn S. Grannatt's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Kathryn S. Grannatt

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Kathryn S. Grannatt's NPI number?

Dr. Kathryn S. Grannatt's NPI number is 1568598209. It was assigned on February 26, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Kathryn S. Grannatt?

Dr. Kathryn S. Grannatt is an orthopedic surgeon in Needham, Massachusetts. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).

Where does Dr. Kathryn S. Grannatt practice?

Dr. Grannatt practices at 148 Chestnut St, Needham, MA 02492. Dr. Grannatt's primary practice is The Cancer Center at Beth Israel Deaconess Medical Center - Physical Therapy - HOPD in Needham, Massachusetts. Dmand AI also links Dr. Grannatt to 3 hospitals, 2 group practices and clinics and 1 medical group.

What is Dr. Kathryn S. Grannatt's medical license number?

Dr. Grannatt holds Massachusetts license 238604.

Which hospitals is Dr. Kathryn S. Grannatt affiliated with?

Dr. Grannatt is affiliated with Beth Israel Deaconess Hospital-Needham. Dmand AI links Dr. Grannatt to 3 more hospitals.

What medical group is Dr. Kathryn S. Grannatt part of?

Dr. Grannatt is linked to Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center (HMFP). Dmand AI links Dr. Grannatt to 1 more medical group.

Does Dr. Kathryn S. Grannatt accept Medicare?

Yes. CMS data shows Dr. Grannatt billed Medicare for 898 services in 2024, and Dr. Grannatt accepts Medicare assignment.

Does Dr. Kathryn S. Grannatt offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Grannatt as offering telehealth services.

How many Medicare patients does Dr. Kathryn S. Grannatt see?

CMS counts 386 Medicare patients who saw Dr. Grannatt in 2024, with an average age of 75.

What services does Dr. Kathryn S. Grannatt bill to Medicare?

In 2024, Dr. Grannatt's most billed Medicare services were surgery: bones and joints (20610), office visit, established patient (99213) and office visit, new patient (99204).

Show 5 more questionsShow fewer questions

Where did Dr. Kathryn S. Grannatt go to medical school?

Dr. Grannatt graduated from University of Utah School of Medicine in 2004.

What drugs does Dr. Kathryn S. Grannatt prescribe most?

In 2024 Medicare Part D data, Dr. Grannatt's most prescribed drugs by claims were Ibuprofen, Meloxicam and Oxycodone-Acetaminophen.

How long has Dr. Kathryn S. Grannatt been practicing?

Dr. Grannatt graduated from medical school in 2004, 22 years ago.

Does Dr. Kathryn S. Grannatt do research?

Dmand AI links 2 publications to Dr. Grannatt.

Who does Dr. Kathryn S. Grannatt publish with?

Dr. Grannatt's most frequent co-authors are Umer Dasti, MD (1 shared paper) and Benton E. Heyworth, MD (1 shared paper).

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